fix: my sample commit summary here

Some optional description over here if you need to add more info

on-behalf-of: @Mermaid-Chart <hello@mermaidchart.com>

.build/common.ts

@@ -33,4 +33,9 @@ export const packageOptions = {
     packageName: 'mermaid-layout-elk',
     file: 'layouts.ts',
   },
+  examples: {
+    name: 'mermaid-examples',
+    packageName: 'examples',
+    file: 'index.ts',
+  },
 } as const satisfies Record<string, PackageOptions>;

.build/types.ts

@@ -10,13 +10,16 @@ const buildType = (packageName: string) => {
       console.log(out.toString());
     }
   } catch (e) {
-    console.error(e);
     if (e.stdout.length > 0) {
       console.error(e.stdout.toString());
     }
     if (e.stderr.length > 0) {
       console.error(e.stderr.toString());
     }
+    // Exit the build process if we are in CI
+    if (process.env.CI) {
+      throw new Error(`Failed to build types for ${packageName}`);
+    }
   }
 };
 

.changeset/cute-crews-shake.md

@@ -1,5 +0,0 @@
----
-'mermaid': minor
----
-
-feat: Added IpSepCoLa algorithm for layout

.changeset/gold-olives-rule.md

@@ -0,0 +1,5 @@
+---
+'mermaid': minor
+---
+
+feat: Add `getRegisteredDiagramsMetadata` to `mermaid`, which returns all the registered diagram IDs in mermaid

.changeset/platinum-olives-rule.md

@@ -0,0 +1,5 @@
+---
+'@mermaid-js/examples': minor
+---
+
+feat: Add examples for diagrams in the `@mermaid-js/examples` package

.changeset/slimy-peaches-win.md

@@ -0,0 +1,7 @@
+---
+'@mermaid-js/examples': patch
+'mermaid': patch
+'@mermaid-js/parser': patch
+---
+
+chore: Move packet diagram out of beta

.changeset/tangy-ghosts-watch.md

@@ -0,0 +1,5 @@
+---
+'mermaid': patch
+---
+
+fix: adjust sequence diagram title positioning to prevent overlap with top border in Safari

.changeset/wild-areas-lick.md

@@ -0,0 +1,7 @@
+---
+'mermaid': patch
+---
+
+fix(timeline): fix loading `leftMargin` from config
+
+The `timeline.leftMargin` config value should now correctly control the size of the left margin, instead of being ignored.

.cspell/code-terms.txt

@@ -88,6 +88,7 @@ NODIR
 NSTR
 outdir
 Qcontrolx
+QSTR
 reinit
 rels
 reqs

.cspell/mermaid-terms.txt

@@ -12,7 +12,6 @@ gantt
 gitgraph
 gzipped
 handDrawn
-ipsepcola
 kanban
 marginx
 marginy

.github/lychee.toml

@@ -46,6 +46,9 @@ exclude = [
 # Drupal 403
 "https://(www.)?drupal.org",
 
+# Phbpp 403
+"https://(www.)?phpbb.com",
+
 # Swimm returns 404, even though the link is valid
 "https://docs.swimm.io",
 

.github/workflows/autofix.yml

@@ -42,4 +42,4 @@ jobs:
         working-directory: ./packages/mermaid
         run: pnpm run docs:build
 
-      - uses: autofix-ci/action@551dded8c6cc8a1054039c8bc0b8b48c51dfc6ef # main
+      - uses: autofix-ci/action@635ffb0c9798bd160680f18fd73371e355b85f27 # main

.github/workflows/e2e.yml

@@ -148,4 +148,4 @@ jobs:
           name: mermaid-codecov
           fail_ci_if_error: false
           verbose: true
-          token: ${{ secrets.CODECOV_TOKEN }}
+          token: 6845cc80-77ee-4e17-85a1-026cd95e0766

.github/workflows/pr-labeler.yml

@@ -29,3 +29,29 @@ jobs:
           disable-releaser: true
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Add "Sponsored by MermaidChart" label
+        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const prNumber = context.payload.pull_request.number;
+            const { data: commits } = await github.rest.pulls.listCommits({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: prNumber,
+            });
+
+            const isSponsored = commits.every(
+              (c) => c.commit.author.email?.endsWith('@mermaidchart.com')
+            );
+
+            if (isSponsored) {
+              console.log('PR is sponsored. Adding label.');
+              await github.rest.issues.addLabels({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: prNumber,
+                labels: ['Sponsored by MermaidChart'],
+              });
+            }

.github/workflows/test.yml

@@ -52,4 +52,4 @@ jobs:
           name: mermaid-codecov
           fail_ci_if_error: false
           verbose: true
-          token: ${{ secrets.CODECOV_TOKEN }}
+          token: 6845cc80-77ee-4e17-85a1-026cd95e0766

.github/workflows/validate-lockfile.yml

@@ -21,6 +21,8 @@ jobs:
         with:
           node-version: 20
 
+      - uses: pnpm/action-setup@a7487c7e89a18df4991f7f222e4898a00d66ddda # v4.1.0
+
       - name: Validate pnpm-lock.yaml entries
         id: validate # give this step an ID so we can reference its outputs
         run: |

__mocks__/d3.ts

@@ -1,13 +0,0 @@
-import { MockedD3 } from '../packages/mermaid/src/tests/MockedD3.js';
-
-export const select = function () {
-  return new MockedD3();
-};
-
-export const selectAll = function () {
-  return new MockedD3();
-};
-
-export const curveBasis = 'basis';
-export const curveLinear = 'linear';
-export const curveCardinal = 'cardinal';

cypress.config.ts

@@ -26,7 +26,10 @@ export default eyesPlugin(
         config.env.useArgos = process.env.RUN_VISUAL_TEST === 'true';
 
         if (config.env.useArgos) {
-          registerArgosTask(on, config);
+          registerArgosTask(on, config, {
+            // Enable upload to Argos only when it runs on CI.
+            uploadToArgos: !!process.env.CI,
+          });
         } else {
           addMatchImageSnapshotPlugin(on, config);
         }

cypress/integration/rendering/ipsepCola.spec.ts

@@ -1,153 +0,0 @@
-import { imgSnapshotTest } from '../../helpers/util.ts';
-
-describe('Flowchart IPSepCoLa', () => {
-  it('1-ipsepCola: should render a simple flowchart', () => {
-    imgSnapshotTest(
-      `---
-        config:
-          layout: ipsepCola
-    ---
-    flowchart
-        A[Christmas] -->|Get money| B(Go shopping)
-        B --> C{Let me think}
-        C -->|One| D[Laptop]
-        C -->|Two| E[iPhone]
-        C -->|Three| F[fa:fa-car Car]
-      `
-    );
-  });
-  it('2-ipsepCola: handle bidirectional edges', () => {
-    imgSnapshotTest(
-      `---
-        config:
-          layout: ipsepCola
-    ---
-    flowchart TD
-        subgraph D
-          A --> B
-          A --> B
-          B --> A
-          B --> A
-        end
-      `
-    );
-  });
-  it('3-ipsepCola: handle multiple self loops', () => {
-    imgSnapshotTest(
-      `---
-        config:
-          layout: ipsepCola
-    ---
-    flowchart
-        a --> a
-        a --> a
-        a --> a
-        a --> a
-      `
-    );
-  });
-  it('4-ipsepCola: handle state diagram example', () => {
-    imgSnapshotTest(
-      `---
-        config:
-          layout: ipsepCola
-    ---
-    stateDiagram-v2
-        [*] --> Still
-        Still --> [*]
-        Still --> Moving
-        Moving --> Still
-        Moving --> Crash
-        Crash --> [*]
-      `
-    );
-  });
-  it('5-ipsepCola: handle multiple subgraphs with edges between them', () => {
-    imgSnapshotTest(
-      `---
-        config:
-          layout: ipsepCola
-    ---
-    flowchart LR
-        c1-->a2
-        subgraph one
-        a1-->a2
-        end
-        subgraph two
-        b1-->b2
-        end
-        subgraph three
-        c1-->c2
-        end
-        one --> two
-        three --> two
-        two --> c2
-      `
-    );
-  });
-  it('6-ipsepCola: handle class diagram example', () => {
-    imgSnapshotTest(
-      `---
-        config:
-          layout: ipsepCola
-    ---
-    classDiagram
-        class AuthService {
-          +login(username: string, password: string): boolean
-          +logout(): void
-          +register(): void
-        }
-
-        class User {
-          -username: string
-          -password: string
-          -role: Role
-          +changePassword(): void
-        }
-
-        class Role {
-          -name: string
-          -permissions: string[]
-          +hasPermission(): boolean
-        }
-
-        AuthService --> User
-        User --> Role
-      `
-    );
-  });
-  it('7-ipsepCola: should render a decision flowchart', () => {
-    imgSnapshotTest(
-      `---
-        config:
-          layout: ipsepCola
-    ---
-      flowchart TD
-        Start([Start]) --> Prep[Preparation Step]
-        Prep --> Split{Ready to Process?}
-        Split -->|Yes| T1[Task A]
-        Split -->|Yes| T2[Task B]
-        T1 --> Merge
-        T2 --> Merge
-        Merge((Join Results)) --> Finalize[Finalize Process]
-        Finalize --> End([End])
-      `
-    );
-  });
-  it('8-ipsepCola: handle nested subgraphs', () => {
-    imgSnapshotTest(
-      `---
-        config:
-          layout: ipsepCola
-    ---
-    flowchart LR
-        subgraph  main
-          subgraph subcontainer
-            subcontainer-child
-          end
-           subcontainer-child--> subcontainer-sibling
-        end
-      `
-    );
-  });
-});

cypress/integration/rendering/packet.spec.ts

@@ -1,7 +1,7 @@
 import { imgSnapshotTest } from '../../helpers/util';
 
 describe('packet structure', () => {
-  it('should render a simple packet diagram', () => {
+  it('should render a simple packet-beta diagram', () => {
     imgSnapshotTest(
       `packet-beta
   title Hello world
@@ -10,9 +10,18 @@ describe('packet structure', () => {
     );
   });
 
+  it('should render a simple packet diagram', () => {
+    imgSnapshotTest(
+      `packet
+  title Hello world
+  0-10: "hello"
+`
+    );
+  });
+
   it('should render a simple packet diagram without ranges', () => {
     imgSnapshotTest(
-      `packet-beta
+      `packet
   0: "h"
   1: "i"
 `
@@ -21,7 +30,7 @@ describe('packet structure', () => {
 
   it('should render a complex packet diagram', () => {
     imgSnapshotTest(
-      `packet-beta
+      `packet
         0-15: "Source Port"
         16-31: "Destination Port"
         32-63: "Sequence Number"
@@ -52,7 +61,7 @@ describe('packet structure', () => {
         packet:
           showBits: false
       ---
-      packet-beta
+      packet
         0-15: "Source Port"
         16-31: "Destination Port"
         32-63: "Sequence Number"

cypress/integration/rendering/treemap.spec.ts

@@ -0,0 +1,382 @@
+import { imgSnapshotTest } from '../../helpers/util.ts';
+
+describe('Treemap Diagram', () => {
+  it('1: should render a basic treemap', () => {
+    imgSnapshotTest(
+      `treemap-beta
+"Category A"
+    "Item A1": 10
+    "Item A2": 20
+"Category B"
+    "Item B1": 15
+    "Item B2": 25
+      `,
+      {}
+    );
+  });
+
+  it('2: should render a hierarchical treemap', () => {
+    imgSnapshotTest(
+      `treemap-beta
+"Products"
+    "Electronics"
+        "Phones": 50
+        "Computers": 30
+        "Accessories": 20
+    "Clothing"
+        "Men's"
+            "Shirts": 10
+            "Pants": 15
+        "Women's"
+            "Dresses": 20
+            "Skirts": 10
+      `,
+      {}
+    );
+  });
+
+  it('3: should render a treemap with styling using classDef', () => {
+    imgSnapshotTest(
+      `treemap-beta
+"Section 1"
+    "Leaf 1.1": 12
+    "Section 1.2":::class1
+      "Leaf 1.2.1": 12
+"Section 2"
+    "Leaf 2.1": 20:::class1
+    "Leaf 2.2": 25
+    "Leaf 2.3": 12
+
+classDef class1 fill:red,color:blue,stroke:#FFD600;
+      `,
+      {}
+    );
+  });
+
+  it('4: should handle long text that wraps', () => {
+    imgSnapshotTest(
+      `treemap-beta
+"Main Category"
+    "This is a very long item name that should wrap to the next line when rendered in the treemap diagram": 50
+    "Short item": 20
+      `,
+      {}
+    );
+  });
+
+  it('5: should render with a forest theme', () => {
+    imgSnapshotTest(
+      `---
+config:
+  theme: forest
+---
+treemap-beta
+"Category A"
+    "Item A1": 10
+    "Item A2": 20
+"Category B"
+    "Item B1": 15
+    "Item B2": 25
+      `,
+      {}
+    );
+  });
+
+  it('6: should handle multiple levels of nesting', () => {
+    imgSnapshotTest(
+      `treemap-beta
+"Level 1"
+    "Level 2A"
+        "Level 3A": 10
+        "Level 3B": 15
+    "Level 2B"
+        "Level 3C": 20
+        "Level 3D"
+            "Level 4A": 5
+            "Level 4B": 5
+      `,
+      {}
+    );
+  });
+
+  it('7: should handle classDef with multiple styles', () => {
+    imgSnapshotTest(
+      `treemap-beta
+"Main"
+    "A": 20
+    "B":::important
+        "B1": 10
+        "B2": 15
+    "C": 5:::secondary
+
+classDef important fill:#f96,stroke:#333,stroke-width:2px;
+classDef secondary fill:#6cf,stroke:#333,stroke-dasharray:5 5;
+      `,
+      {}
+    );
+  });
+
+  it('8: should handle dollar value formatting with thousands separator', () => {
+    imgSnapshotTest(
+      `---
+config:
+  treemap:
+    valueFormat: "$0,0"
+---
+treemap
+"Budget"
+    "Operations"
+        "Salaries": 700000
+        "Equipment": 200000
+        "Supplies": 100000
+    "Marketing"
+        "Advertising": 400000
+        "Events": 100000
+      `,
+      {}
+    );
+  });
+
+  it('8a: should handle percentage formatting', () => {
+    imgSnapshotTest(
+      `---
+config:
+  treemap:
+    valueFormat: ".1%"
+---
+treemap-beta
+"Market Share"
+    "Company A": 0.35
+    "Company B": 0.25
+    "Company C": 0.15
+    "Others": 0.25
+      `,
+      {}
+    );
+  });
+
+  it('8b: should handle decimal formatting', () => {
+    imgSnapshotTest(
+      `---
+config:
+  treemap:
+    valueFormat: ".2f"
+---
+treemap-beta
+"Metrics"
+    "Conversion Rate": 0.0567
+    "Bounce Rate": 0.6723
+    "Click-through Rate": 0.1289
+    "Engagement": 0.4521
+      `,
+      {}
+    );
+  });
+
+  it('8c: should handle dollar sign with decimal places', () => {
+    imgSnapshotTest(
+      `---
+config:
+  treemap:
+    valueFormat: "$.2f"
+---
+treemap-beta
+"Product Prices"
+    "Basic": 19.99
+    "Standard": 49.99
+    "Premium": 99.99
+    "Enterprise": 199.99
+      `,
+      {}
+    );
+  });
+
+  it('8d: should handle dollar sign with thousands separator and decimal places', () => {
+    imgSnapshotTest(
+      `---
+config:
+  treemap:
+    valueFormat: "$,.2f"
+---
+treemap-beta
+"Revenue"
+    "Q1": 1250345.75
+    "Q2": 1645789.25
+    "Q3": 1845123.50
+    "Q4": 2145678.75
+      `,
+      {}
+    );
+  });
+
+  it('8e: should handle simple thousands separator', () => {
+    imgSnapshotTest(
+      `---
+config:
+  treemap:
+    valueFormat: ","
+---
+treemap-beta
+"User Counts"
+    "Active Users": 1250345
+    "New Signups": 45789
+    "Churned": 12350
+    "Converted": 78975
+      `,
+      {}
+    );
+  });
+
+  it('8f: should handle valueFormat set via directive with dollar and thousands separator', () => {
+    imgSnapshotTest(
+      `---
+config:
+  treemap:
+    valueFormat: "$,.0f"
+---
+treemap-beta
+"Sales by Region"
+    "North": 1234567
+    "South": 7654321
+    "East": 4567890
+    "West": 9876543
+      `,
+      {}
+    );
+  });
+
+  it('8g: should handle scientific notation format', () => {
+    imgSnapshotTest(
+      `---
+config:
+  treemap:
+    valueFormat: ".2e"
+---
+treemap-beta
+"Scientific Values"
+    "Value 1": 1234567
+    "Value 2": 0.0000123
+    "Value 3": 1000000000
+      `,
+      {}
+    );
+  });
+
+  it('9: should handle a complex example with multiple features', () => {
+    imgSnapshotTest(
+      `---
+config:
+  theme: dark
+  treemap:
+    valueFormat: "$0,0"
+---
+treemap-beta
+"Company Budget"
+    "Engineering":::engineering
+        "Frontend": 300000
+        "Backend": 400000
+        "DevOps": 200000
+    "Marketing":::marketing
+        "Digital": 250000
+        "Print": 100000
+        "Events": 150000
+    "Sales":::sales
+        "Direct": 500000
+        "Channel": 300000
+
+classDef engineering fill:#6b9bc3,stroke:#333;
+classDef marketing fill:#c36b9b,stroke:#333;
+classDef sales fill:#c3a66b,stroke:#333;
+      `,
+      {}
+    );
+  });
+
+  it('10: should render the example from documentation', () => {
+    imgSnapshotTest(
+      `
+    treemap-beta
+      "Section 1"
+          "Leaf 1.1": 12
+          "Section 1.2":::class1
+            "Leaf 1.2.1": 12
+      "Section 2"
+          "Leaf 2.1": 20:::class1
+          "Leaf 2.2": 25
+          "Leaf 2.3": 12
+
+      classDef class1 fill:red,color:blue,stroke:#FFD600;
+      `,
+      {}
+    );
+  });
+
+  it('11: should handle comments', () => {
+    imgSnapshotTest(
+      `
+    treemap-beta
+      %% This is a comment
+      "Category A"
+          "Item A1": 10
+          "Item A2": 20
+      %% Another comment
+      "Category B"
+          "Item B1": 15
+          "Item B2": 25
+      `,
+      {}
+    );
+  });
+  /*
+  it.skip('12: should render a treemap with title', () => {
+    imgSnapshotTest(
+      `
+    treemap-beta
+      title Treemap with Title
+      "Category A"
+          "Item A1": 10
+          "Item A2": 20
+      "Category B"
+          "Item B1": 15
+          "Item B2": 25
+      `,
+      {}
+    );
+  });
+
+  it.skip('13: should render a treemap with accessibility attributes', () => {
+    imgSnapshotTest(
+      `
+    treemap-beta
+      accTitle: Accessible Treemap Title
+      accDescr: This is a description of the treemap for accessibility purposes
+      "Category A"
+          "Item A1": 10
+          "Item A2": 20
+      "Category B"
+          "Item B1": 15
+          "Item B2": 25
+      `,
+      {}
+    );
+  });
+
+  it.skip('14: should render a treemap with title and accessibility attributes', () => {
+    imgSnapshotTest(
+      `
+    treemap
+      title Treemap with Title and Accessibility
+      accTitle: Accessible Treemap Title
+      accDescr: This is a description of the treemap for accessibility purposes
+      "Category A"
+          "Item A1": 10
+          "Item A2": 20
+      "Category B"
+          "Item B1": 15
+          "Item B2": 25
+      `,
+      {}
+    );
+  });
+  */
+});

cypress/platform/ipsepcola_sample.html

@@ -1,601 +0,0 @@
-<html>
-  <head>
-    <link href="https://fonts.googleapis.com/css?family=Montserrat&display=swap" rel="stylesheet" />
-    <link href="https://unpkg.com/tailwindcss@^1.0/dist/tailwind.min.css" rel="stylesheet" />
-    <link
-      rel="stylesheet"
-      href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.2/css/font-awesome.min.css"
-    />
-    <link
-      href="https://cdn.jsdelivr.net/npm/@mdi/font@6.9.96/css/materialdesignicons.min.css"
-      rel="stylesheet"
-    />
-    <link
-      href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.2/css/all.min.css"
-      rel="stylesheet"
-    />
-    <link
-      href="https://fonts.googleapis.com/css?family=Noto+Sans+SC&display=swap"
-      rel="stylesheet"
-    />
-    <link rel="preconnect" href="https://fonts.googleapis.com" />
-    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
-    <link
-      href="https://fonts.googleapis.com/css2?family=Kalam:wght@300;400;700&display=swap"
-      rel="stylesheet"
-    />
-    <link
-      href="https://fonts.googleapis.com/css2?family=Caveat:wght@400..700&family=Kalam:wght@300;400;700&family=Rubik+Mono+One&display=swap"
-      rel="stylesheet"
-    />
-    <link
-      href="https://fonts.googleapis.com/css2?family=Kalam:wght@300;400;700&family=Rubik+Mono+One&display=swap"
-      rel="stylesheet"
-    />
-
-    <style>
-      body {
-        /* background: #333; */
-        font-family: 'Arial';
-      }
-
-      h1 {
-        color: grey;
-      }
-
-      .mermaid2 {
-        display: none;
-      }
-
-      svg {
-        border: 3px solid #300;
-        margin: 10px;
-      }
-
-      pre {
-        width: 100%;
-      }
-    </style>
-  </head>
-
-  <body>
-    <pre id="diagram4" class="mermaid">
-      flowchart
-          A --> B
-      subgraph hello
-          C --> D
-        end
-      </pre
-    >
-
-    <pre id="diagram4" class="mermaid">
-      flowchart
-      A --> B
-      A --> B
-      </pre
-    >
-    <pre id="diagram4" class="mermaid">
-        flowchart
-          A[hello] --> A
-        </pre
-    >
-
-    <pre id="diagram4" class="mermaid">
-        flowchart
-          subgraph C
-          c
-        end
-        A --> C
-        </pre
-    >
-    <pre id="diagram4" class="mermaid">
-        flowchart
-          subgraph C
-            c
-          end
-        A --> c
-        </pre
-    >
-
-    <pre id="diagram4" class="mermaid">
-      flowchart TD
-      subgraph D
-        A --> B
-        A --> B
-        B --> A
-        B --> A
-      end
-      </pre
-    >
-    <pre id="diagram4" class="mermaid">
-flowchart
-subgraph B2
-A --> B --> C
-B --> D
-end
-
-B2 --> X
-</pre
-    >
-    <pre id="diagram4" class="mermaid">
-      stateDiagram-v2
-      [*] --> Still
-      Still --> [*]
-      Still --> Moving
-      Moving --> Still
-      Moving --> Crash
-      Crash --> [*]
-      </pre
-    >
-
-    <pre id="diagram4" class="mermaid">
-classDiagram
-    Animal <|-- Duck
-    Animal <|-- Fish
-    Animal <|-- Zebra
-    Animal : +int age
-    Animal : +String gender
-    Animal: +isMammal()
-    Animal: +mate()
-    class Duck{
-      +String beakColor
-      +swim()
-      +quack()
-    }
-    class Fish{
-      -int sizeInFeet
-      -canEat()
-    }
-    class Zebra{
-      +bool is_wild
-      +run()
-    }
-      </pre
-    >
-    <pre id="diagram4" class="mermaid">
-flowchart TD
-        P1
-        P1 -->P1.5
-        subgraph P1.5
-          P2
-          P2.5(( A ))
-          P3
-        end
-        P2 --> P4
-        P3 --> P6
-        P1.5 --> P5
-    </pre>
-    <pre id="diagram4" class="mermaid">
-      %% Length of edges
-flowchart TD
-      L1 --- L2
-      L2 --- C
-      M1 ---> C
-      R1 .-> R2
-      R2 <.-> C
-      C -->|Label 1| E1
-      C <-- Label 2 ---> E2
-      C ----> E3
-      C <-...-> E4
-      C ======> E5
-    </pre>
-    <pre id="diagram4" class="mermaid">
-      %% Stadium shape
-flowchart TD
-      A([stadium shape test])
-      A -->|Get money| B([Go shopping])
-      B --> C([Let me think...<br />Do I want something for work,<br />something to spend every free second with,<br />or something to get around?])
-      C -->|One| D([Laptop])
-      C -->|Two| E([iPhone])
-      C -->|Three| F([Car<br/>wroom wroom])
-      click A "index.html#link-clicked" "link test"
-      click B testClick "click test"
-      classDef someclass fill:#f96;
-      class A someclass;
-      class C someclass;
-    </pre>
-
-    <pre id="diagram4" class="mermaid">
-      %% should render escaped without html labels
-flowchart TD
-        a["<strong>Haiya</strong>"]---->b
-    </pre>
-    <pre id="diagram4" class="mermaid">
-      %% nested subgraphs in reverse order
-flowchart LR
-        a -->b
-        subgraph A
-        B
-        end
-        subgraph B
-        b
-        end
-    </pre>
-    <pre id="diagram4" class="mermaid">
-      %% nested subgraphs in several levels
-flowchart LR
-    b-->B
-    a-->c
-    subgraph O
-      A
-    end
-    subgraph B
-      c
-    end
-    subgraph A
-        a
-        b
-        B
-    end
-    </pre>
-    <pre id="diagram4" class="mermaid">
-      %% nested subgraphs with edges in and out
-flowchart LR
-  internet
-  nat
-  routeur
-  lb1
-  lb2
-  compute1
-  compute2
-  subgraph project
-  routeur
-  nat
-    subgraph subnet1
-      compute1
-      lb1
-    end
-    subgraph subnet2
-      compute2
-      lb2
-    end
-  end
-  internet --> routeur
-  routeur --> subnet1 & subnet2
-  subnet1 & subnet2 --> nat --> internet
-    </pre>
-    <pre id="diagram4" class="mermaid">
-      %% nested subgraphs with outgoing links
-flowchart LR
-  subgraph  main
-    subgraph subcontainer
-      subcontainer-child
-    end
-     subcontainer-child--> subcontainer-sibling
-  end
-    </pre>
-    <pre id="diagram4" class="mermaid">
-      %% nested subgraphs with ingoing links
-flowchart LR
-subgraph one[One]
-    subgraph sub_one[Sub One]
-        _sub_one
-    end
-    subgraph sub_two[Sub Two]
-        _sub_two
-    end
-    _one
-end
-
-%% here, either the first or the second one
-sub_one --> sub_two
-_one --> b
-    </pre>
-    <pre id="diagram4" class="mermaid">
-      %% nested subgraphs with outgoing links 3
-flowchart LR
-  subgraph container_Beta
-    process_C-->Process_D
-  end
-  subgraph container_Alpha
-    process_A-->process_B
-    process_A-->|messages|process_C
-    end
-    process_B-->|via_AWSBatch|container_Beta
-    </pre>
-    <pre id="diagram4" class="mermaid">
-      %% nested subgraphs with outgoing links 4
-flowchart LR
-subgraph A
-a -->b
-end
-subgraph B
-b
-end
-    </pre>
-    <pre id="diagram4" class="mermaid">
-      %% nested subgraphs with outgoing links 2
-flowchart LR
-    c1-->a2
-    subgraph one
-    a1-->a2
-    end
-    subgraph two
-    b1-->b2
-    end
-    subgraph three
-    c1-->c2
-    end
-    one --> two
-    three --> two
-    two --> c2
-    </pre>
-    <pre id="diagram4" class="mermaid">
-      %% nested subgraphs with outgoing links 5
-flowchart LR
-  subgraph container_Beta
-    process_C-->Process_D
-  end
-  subgraph container_Alpha
-    process_A-->process_B
-    process_B-->|via_AWSBatch|container_Beta
-    process_A-->|messages|process_C
-  end
-    </pre>
-    <pre id="diagram4" class="mermaid">
-      %% More subgraphs
-      flowchart LR
-    subgraph two
-    b1
-    end
-    subgraph three
-    c2
-    end
-
-    three --> two
-    two --> c2
-    note[There are two links in this diagram]
-    </pre>
-    <pre id="diagram4" class="mermaid">
-      %% nested subgraphs with outgoing links 5
-flowchart LR
-      A[red text] -->|default style| B(blue text)
-      C([red text]) -->|default style| D[[blue text]]
-      E[(red text)] -->|default style| F((blue text))
-      G>red text] -->|default style| H{blue text}
-      I{{red text}} -->|default style| J[/blue text/]
-      K[\\ red text\\] -->|default style| L[/blue text\\]
-      M[\\ red text/] -->|default style| N[blue text];
-      O(((red text))) -->|default style| P(((blue text)));
-      linkStyle default color:Sienna;
-      style A stroke:#ff0000,fill:#ffcccc,color:#ff0000;
-      style B stroke:#0000ff,fill:#ccccff,color:#0000ff;
-      style C stroke:#ff0000,fill:#ffcccc,color:#ff0000;
-      style D stroke:#0000ff,fill:#ccccff,color:#0000ff;
-      style E stroke:#ff0000,fill:#ffcccc,color:#ff0000;
-      style F stroke:#0000ff,fill:#ccccff,color:#0000ff;
-      style G stroke:#ff0000,fill:#ffcccc,color:#ff0000;
-      style H stroke:#0000ff,fill:#ccccff,color:#0000ff;
-      style I stroke:#ff0000,fill:#ffcccc,color:#ff0000;
-      style J stroke:#0000ff,fill:#ccccff,color:#0000ff;
-      style K stroke:#ff0000,fill:#ffcccc,color:#ff0000;
-      style L stroke:#0000ff,fill:#ccccff,color:#0000ff;
-      style M stroke:#ff0000,fill:#ffcccc,color:#ff0000;
-      style N stroke:#0000ff,fill:#ccccff,color:#0000ff;
-      style O stroke:#ff0000,fill:#ffcccc,color:#ff0000;
-      style P stroke:#0000ff,fill:#ccccff,color:#0000ff;
-    </pre>
-    <pre id="diagram4" class="mermaid">
-      %% labels on edges in a cluster
-flowchart RL
-    subgraph one
-      a1 -- I am a long label --> a2
-      a1 -- Another long label --> a2
-    end
-    </pre>
-    <pre id="diagram4" class="mermaid">
-      %% labels on edges in a cluster
-flowchart RL
-    subgraph one
-      a1[Iam a node with a super long label] -- I am a long label --> a2[I am another node with a mega long label]
-      a1 -- Another long label --> a2
-      a3 --> a1 & a2 & a3 & a4
-      a1 --> a4
-    end
-    </pre>
-    <pre id="diagram4" class="mermaid">
-      %% labels on edges in a cluster
-flowchart RL
-    subgraph one
-      a1[Iam a node with a super long label]
-      a2[I am another node with a mega long label]
-      a3[I am a node with a super long label]
-      a4[I am another node with a mega long label]
-      a1 -- Another long label --> a2
-      a3 --> a1 & a2 & a3 & a4
-      a1 --> a4
-    end
-    </pre>
-    <pre id="diagram4" class="mermaid">
-      %% labels on edges in a cluster
-flowchart RL
-      a1[I am a node with a super long label. I am a node with a super long label. I am a node with a super long label. I am a node with a super long label. I am a node with a super long label. ]
-      a2[I am another node with a mega long label]
-      a3[I am a node with a super long label]
-      a4[I am another node with a mega long label]
-      a1 & a2 & a3 & a4 -->  a5 & a6 & a7 & a8 & a9 & a10
-
-    </pre>
-    <pre id="diagram4" class="mermaid">
-         flowchart
-        subgraph Z
-        subgraph X
-        a --> b
-        end
-        subgraph Y
-        c --> d
-        end
-        end
-        Y --> X
-        X --> P
-        P --> Y
-    
-        </pre
-    >
-    <pre id="diagram4" class="mermaid">
-            flowchart
-            
-            a --> b
-            b --> c
-            b --> d
-            c --> a
-            
-                    </pre
-    >
-
-    <pre id="diagram3" class="mermaid">
-flowchart TD
-  Start([Start]) --> Prep[Preparation Step]
-  Prep --> Split{Ready to Process?}
-  Split -->|Yes| T1[Task A]
-  Split -->|Yes| T2[Task B]
-  T1 --> Merge
-  T2 --> Merge
-  Merge((Join Results)) --> Finalize[Finalize Process]
-  Finalize --> End([End])
-</pre
-    >
-    <pre id="diagram4" class="mermaid">
-flowchart TD
-  A[Start Build] --> B[Compile Source]
-  B --> C[Test Suite]
-  C --> D{Tests Passed?}
-  D -->|No| E[Notify Developer]
-  E --> A
-  D -->|Yes| F[Build Docker Image]
-
-  subgraph Deploy Pipeline
-    F --> G[Deploy to Staging]
-    G --> H[Run Integration Tests]
-    H --> I{Tests Passed?}
-    I -->|No| J[Rollback & Alert]
-    I -->|Yes| K[Deploy to Production]
-  end
-
-  K --> L([Success])
-</pre
-    >
-
-    <pre class="mermaid">
-classDiagram
-class Controller {
-  +handleRequest(): void
-}
-
-class View {
-  +render(): void
-}
-
-class Model {
-  +getData(): any
-  +setData(data: any): void
-}
-
-Controller --> Model
-Controller --> View
-Model --> View : notifyChange()
-</pre
-    >
-
-    <pre class="mermaid">
-classDiagram
-class AuthService {
-  +login(username: string, password: string): boolean
-  +logout(): void
-  +register(): void
-}
-
-class User {
-  -username: string
-  -password: string
-  -role: Role
-  +changePassword(): void
-}
-
-class Role {
-  -name: string
-  -permissions: string[]
-  +hasPermission(): boolean
-}
-
-AuthService --> User
-User --> Role
-</pre
-    >
-
-    <script type="module">
-      import mermaid from './mermaid.esm.mjs';
-      import layouts from './mermaid-layout-elk.esm.mjs';
-
-      const staticBellIconPack = {
-        prefix: 'fa6-regular',
-        icons: {
-          bell: {
-            body: '<path fill="currentColor" d="M224 0c-17.7 0-32 14.3-32 32v19.2C119 66 64 130.6 64 208v25.4c0 45.4-15.5 89.5-43.8 124.9L5.3 377c-5.8 7.2-6.9 17.1-2.9 25.4S14.8 416 24 416h400c9.2 0 17.6-5.3 21.6-13.6s2.9-18.2-2.9-25.4l-14.9-18.6c-28.3-35.5-43.8-79.6-43.8-125V208c0-77.4-55-142-128-156.8V32c0-17.7-14.3-32-32-32m0 96c61.9 0 112 50.1 112 112v25.4c0 47.9 13.9 94.6 39.7 134.6H72.3c25.8-40 39.7-86.7 39.7-134.6V208c0-61.9 50.1-112 112-112m64 352H160c0 17 6.7 33.3 18.7 45.3S207 512 224 512s33.3-6.7 45.3-18.7S288 465 288 448"/>',
-            width: 448,
-          },
-        },
-        width: 512,
-        height: 512,
-      };
-
-      mermaid.registerIconPacks([
-        {
-          name: 'logos',
-          loader: () =>
-            fetch('https://unpkg.com/@iconify-json/logos@1/icons.json').then((res) => res.json()),
-        },
-        {
-          name: 'fa',
-          loader: () => staticBellIconPack,
-        },
-      ]);
-      mermaid.registerLayoutLoaders(layouts);
-      mermaid.parseError = function (err, hash) {
-        console.error('Mermaid error: ', err);
-      };
-      window.callback = function () {
-        alert('A callback was triggered');
-      };
-      function callback() {
-        alert('It worked');
-      }
-      await mermaid.initialize({
-        theme: 'redux-dark',
-        // theme: 'default',
-        // theme: 'forest',
-        handDrawnSeed: 12,
-        look: 'classic  ',
-        // 'elk.nodePlacement.strategy': 'NETWORK_SIMPLEX',
-        // layout: 'dagre',
-        layout: 'ipsepCola',
-        // layout: 'elk',
-        // layout: 'sugiyama',
-        // htmlLabels: false,
-        flowchart: { titleTopMargin: 10 },
-
-        // fontFamily: 'Caveat',
-        // fontFamily: 'Kalam',
-        // fontFamily: 'courier',
-        fontFamily: 'arial',
-        sequence: {
-          actorFontFamily: 'courier',
-          noteFontFamily: 'courier',
-          messageFontFamily: 'courier',
-        },
-        kanban: {
-          htmlLabels: false,
-        },
-        fontSize: 12,
-        logLevel: 0,
-        securityLevel: 'loose',
-        callback,
-      });
-
-      mermaid.parseError = function (err, hash) {
-        console.error('In parse error:');
-        console.error(err);
-      };
-    </script>
-  </body>
-</html>

cypress/platform/knsv2.html

@@ -32,8 +32,26 @@
       href="https://fonts.googleapis.com/css2?family=Kalam:wght@300;400;700&family=Rubik+Mono+One&display=swap"
       rel="stylesheet"
     />
+    <link rel="preconnect" href="https://fonts.googleapis.com" />
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
+    <link
+      href="https://fonts.googleapis.com/css2?family=Recursive:wght@300..1000&display=swap"
+      rel="stylesheet"
+    />
 
     <style>
+      .recursive-mermaid {
+        font-family: 'Recursive', sans-serif;
+        font-optical-sizing: auto;
+        font-weight: 500;
+        font-style: normal;
+        font-variation-settings:
+          'slnt' 0,
+          'CASL' 0,
+          'CRSV' 0.5,
+          'MONO' 0;
+      }
+
       body {
         /* background: rgb(221, 208, 208); */
         /* background: #333; */
@@ -45,7 +63,9 @@
       h1 {
         color: grey;
       }
-
+      .mermaid {
+        border: 1px solid red;
+      }
       .mermaid2 {
         display: none;
       }
@@ -83,6 +103,11 @@
         width: 100%;
       }
 
+      .class2 {
+        fill: red;
+        fill-opacity: 1;
+      }
+
       /* tspan {
               font-size: 6px !important;
             } */
@@ -106,19 +131,63 @@
 
   <body>
     <pre id="diagram4" class="mermaid">
+treemap
+"Section 1"
+    "Leaf 1.1": 12
+    "Section 1.2":::class1
+      "Leaf 1.2.1": 12
+"Section 2"
+    "Leaf 2.1": 20:::class1
+    "Leaf 2.2": 25
+    "Leaf 2.3": 12
+
+classDef class1   fill:red,color:blue,stroke:#FFD600;
+
+
+</pre
+    >
+    <pre id="diagram4" class="mermaid2">
+---
+config:
+  treemap:
+    valueFormat: '$0,0'
+---
+treemap
+"Budget"
+    "Operations"
+        "Salaries": 7000
+        "Equipment": 2000
+        "Supplies": 1000
+    "Marketing"
+        "Advertising": 4000
+        "Events": 1000
+
+</pre
+    >
+    <pre id="diagram4" class="mermaid">
+    treemap
+      title Accessible Treemap Title
+      "Category A"
+          "Item A1": 10
+          "Item A2": 20
+      "Category B"
+          "Item B1": 15
+          "Item B2": 25
+    </pre>
+    <pre id="diagram4" class="mermaid2">
       flowchart LR
         AB["apa@apa@"] --> B(("`apa@apa`"))
     </pre>
-    <pre id="diagram4" class="mermaid">
+    <pre id="diagram4" class="mermaid2">
       flowchart
         D(("for D"))
     </pre>
-    <pre id="diagram4" class="mermaid">
+    <pre id="diagram4" class="mermaid2">
       flowchart LR
         A e1@==> B
         e1@{ animate: true}
     </pre>
-    <pre id="diagram4" class="mermaid">
+    <pre id="diagram4" class="mermaid2">
 flowchart LR
   A e1@--> B
   classDef animate stroke-width:2,stroke-dasharray:10\,8,stroke-dashoffset:-180,animation: edge-animation-frame 6s linear infinite, stroke-linecap: round
@@ -438,7 +507,7 @@ kanban
         alert('It worked');
       }
       await mermaid.initialize({
-        // theme: 'base',
+        // theme: 'forest',
         // theme: 'default',
         // theme: 'forest',
         // handDrawnSeed: 12,
@@ -449,11 +518,7 @@ kanban
         // layout: 'fixed',
         // htmlLabels: false,
         flowchart: { titleTopMargin: 10 },
-
-        // fontFamily: 'Caveat',
-        // fontFamily: 'Kalam',
-        // fontFamily: 'courier',
-        fontFamily: 'arial',
+        fontFamily: "'Recursive', sans-serif",
         sequence: {
           actorFontFamily: 'courier',
           noteFontFamily: 'courier',

cypress/platform/saurabh.html

@@ -75,7 +75,6 @@
               end
               D --> D
             end
-            C1 --> C1
           end
 
     </pre>

cypress/timings.json

@@ -2,35 +2,35 @@
   "durations": [
     {
       "spec": "cypress/integration/other/configuration.spec.js",
-      "duration": 6130
+      "duration": 5672
     },
     {
       "spec": "cypress/integration/other/external-diagrams.spec.js",
-      "duration": 1974
+      "duration": 1990
     },
     {
       "spec": "cypress/integration/other/ghsa.spec.js",
-      "duration": 3308
+      "duration": 3186
     },
     {
       "spec": "cypress/integration/other/iife.spec.js",
-      "duration": 1877
+      "duration": 1948
     },
     {
       "spec": "cypress/integration/other/interaction.spec.js",
-      "duration": 10902
+      "duration": 11938
     },
     {
       "spec": "cypress/integration/other/rerender.spec.js",
-      "duration": 1836
+      "duration": 1932
     },
     {
       "spec": "cypress/integration/other/xss.spec.js",
-      "duration": 26467
+      "duration": 27237
     },
     {
       "spec": "cypress/integration/rendering/appli.spec.js",
-      "duration": 3129
+      "duration": 3170
     },
     {
       "spec": "cypress/integration/rendering/architecture.spec.ts",
@@ -38,147 +38,147 @@
     },
     {
       "spec": "cypress/integration/rendering/block.spec.js",
-      "duration": 16230
+      "duration": 17390
     },
     {
       "spec": "cypress/integration/rendering/c4.spec.js",
-      "duration": 5231
+      "duration": 5296
     },
     {
       "spec": "cypress/integration/rendering/classDiagram-elk-v3.spec.js",
-      "duration": 38113
+      "duration": 39004
     },
     {
       "spec": "cypress/integration/rendering/classDiagram-handDrawn-v3.spec.js",
-      "duration": 36423
+      "duration": 37653
     },
     {
       "spec": "cypress/integration/rendering/classDiagram-v2.spec.js",
-      "duration": 22509
+      "duration": 23278
     },
     {
       "spec": "cypress/integration/rendering/classDiagram-v3.spec.js",
-      "duration": 34933
+      "duration": 36645
     },
     {
       "spec": "cypress/integration/rendering/classDiagram.spec.js",
-      "duration": 14681
+      "duration": 15418
     },
     {
       "spec": "cypress/integration/rendering/conf-and-directives.spec.js",
-      "duration": 8877
+      "duration": 9684
     },
     {
       "spec": "cypress/integration/rendering/current.spec.js",
-      "duration": 2517
+      "duration": 2570
     },
     {
       "spec": "cypress/integration/rendering/erDiagram-unified.spec.js",
-      "duration": 81226
+      "duration": 84687
     },
     {
       "spec": "cypress/integration/rendering/erDiagram.spec.js",
-      "duration": 14211
+      "duration": 14819
     },
     {
       "spec": "cypress/integration/rendering/errorDiagram.spec.js",
-      "duration": 3355
+      "duration": 3371
     },
     {
       "spec": "cypress/integration/rendering/flowchart-elk.spec.js",
-      "duration": 38857
+      "duration": 39925
     },
     {
       "spec": "cypress/integration/rendering/flowchart-handDrawn.spec.js",
-      "duration": 28570
+      "duration": 34694
     },
     {
       "spec": "cypress/integration/rendering/flowchart-icon.spec.js",
-      "duration": 6902
+      "duration": 7137
     },
     {
       "spec": "cypress/integration/rendering/flowchart-shape-alias.spec.ts",
-      "duration": 23075
+      "duration": 24740
     },
     {
       "spec": "cypress/integration/rendering/flowchart-v2.spec.js",
-      "duration": 40514
+      "duration": 42077
     },
     {
       "spec": "cypress/integration/rendering/flowchart.spec.js",
-      "duration": 28611
+      "duration": 30642
     },
     {
       "spec": "cypress/integration/rendering/gantt.spec.js",
-      "duration": 16605
+      "duration": 18085
     },
     {
       "spec": "cypress/integration/rendering/gitGraph.spec.js",
-      "duration": 47636
+      "duration": 50107
     },
     {
       "spec": "cypress/integration/rendering/iconShape.spec.ts",
-      "duration": 262219
+      "duration": 276279
     },
     {
       "spec": "cypress/integration/rendering/imageShape.spec.ts",
-      "duration": 54111
+      "duration": 56505
     },
     {
       "spec": "cypress/integration/rendering/info.spec.ts",
-      "duration": 3006
+      "duration": 3036
     },
     {
       "spec": "cypress/integration/rendering/journey.spec.js",
-      "duration": 6858
+      "duration": 6889
     },
     {
       "spec": "cypress/integration/rendering/kanban.spec.ts",
-      "duration": 7281
+      "duration": 7353
     },
     {
       "spec": "cypress/integration/rendering/katex.spec.js",
-      "duration": 3579
+      "duration": 3580
     },
     {
       "spec": "cypress/integration/rendering/marker_unique_id.spec.js",
-      "duration": 2448
+      "duration": 2508
     },
     {
       "spec": "cypress/integration/rendering/mindmap.spec.ts",
-      "duration": 10618
+      "duration": 10939
     },
     {
       "spec": "cypress/integration/rendering/newShapes.spec.ts",
-      "duration": 140874
+      "duration": 149102
     },
     {
       "spec": "cypress/integration/rendering/oldShapes.spec.ts",
-      "duration": 108015
+      "duration": 113987
     },
     {
       "spec": "cypress/integration/rendering/packet.spec.ts",
-      "duration": 4241
+      "duration": 4060
     },
     {
       "spec": "cypress/integration/rendering/pie.spec.ts",
-      "duration": 5645
+      "duration": 5715
     },
     {
       "spec": "cypress/integration/rendering/quadrantChart.spec.js",
-      "duration": 8524
+      "duration": 8945
     },
     {
       "spec": "cypress/integration/rendering/radar.spec.js",
-      "duration": 5203
+      "duration": 5337
     },
     {
       "spec": "cypress/integration/rendering/requirement.spec.js",
-      "duration": 2635
+      "duration": 2643
     },
     {
       "spec": "cypress/integration/rendering/requirementDiagram-unified.spec.js",
-      "duration": 50512
+      "duration": 52072
     },
     {
       "spec": "cypress/integration/rendering/sankey.spec.ts",
@@ -186,31 +186,35 @@
     },
     {
       "spec": "cypress/integration/rendering/sequencediagram.spec.js",
-      "duration": 34559
+      "duration": 35721
     },
     {
       "spec": "cypress/integration/rendering/stateDiagram-v2.spec.js",
-      "duration": 24421
+      "duration": 26030
     },
     {
       "spec": "cypress/integration/rendering/stateDiagram.spec.js",
-      "duration": 15316
+      "duration": 16333
     },
     {
       "spec": "cypress/integration/rendering/theme.spec.js",
-      "duration": 28240
+      "duration": 29287
     },
     {
       "spec": "cypress/integration/rendering/timeline.spec.ts",
-      "duration": 6808
+      "duration": 8491
+    },
+    {
+      "spec": "cypress/integration/rendering/treemap.spec.ts",
+      "duration": 12291
     },
     {
       "spec": "cypress/integration/rendering/xyChart.spec.js",
-      "duration": 19359
+      "duration": 20651
     },
     {
       "spec": "cypress/integration/rendering/zenuml.spec.js",
-      "duration": 3164
+      "duration": 3218
     }
   ]
 }

demos/er-multiline.html

@@ -4,7 +4,7 @@
     <link href="https://unpkg.com/tailwindcss@^1.0/dist/tailwind.min.css" rel="stylesheet" />
     <link
       rel="stylesheet"
-      href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css"
+      href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.2/css/font-awesome.min.css"
     />
     <link
       href="https://cdn.jsdelivr.net/npm/@mdi/font@6.9.96/css/materialdesignicons.min.css"

demos/packet.html

@@ -17,7 +17,7 @@
 
     <div class="diagrams">
       <pre class="mermaid">
-      packet-beta
+      packet
         0-15: "Source Port"
         16-31: "Destination Port"
         32-63: "Sequence Number"
@@ -44,7 +44,7 @@
         packet:
           showBits: false
       ---
-      packet-beta
+      packet
         0-15: "Source Port"
         16-31: "Destination Port"
         32-63: "Sequence Number"
@@ -70,7 +70,7 @@
       config:
         theme: forest
       ---
-      packet-beta
+      packet
         title Forest theme
         0-15: "Source Port"
         16-31: "Destination Port"
@@ -97,7 +97,7 @@
       config:
         theme: dark
       ---
-      packet-beta
+      packet
         title Dark theme
         0-15: "Source Port"
         16-31: "Destination Port"

demos/treemap.html

@@ -0,0 +1,75 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <title>Mermaid Treemap Diagram Demo</title>
+    <link href="https://fonts.googleapis.com/css?family=Montserrat&display=swap" rel="stylesheet" />
+    <style>
+      body {
+        font-family: 'Montserrat', sans-serif;
+        margin: 0 auto;
+        max-width: 900px;
+        padding: 20px;
+      }
+      .mermaid {
+        margin: 30px 0;
+      }
+      h1,
+      h2 {
+        color: #333;
+      }
+      pre {
+        background-color: #f5f5f5;
+        padding: 15px;
+        border-radius: 5px;
+      }
+    </style>
+  </head>
+  <body>
+    <h1>Treemap Diagram Demo</h1>
+    <p>This is a demo of the new treemap diagram type in Mermaid.</p>
+
+    <h2>Basic Treemap Example</h2>
+    <pre class="mermaid">
+treemap
+    "Root"
+        "Branch 1"
+            "Leaf 1.1": 10
+            "Leaf 1.2": 15
+        "Branch 2"
+            "Branch 2.1"
+                "Leaf 2.1.1": 20
+                "Leaf 2.1.2": 25
+            "Leaf 2.2": 25
+            "Leaf 2.3": 30
+    </pre>
+
+    <h2>Technology Stack Treemap Example</h2>
+    <pre class="mermaid">
+treemap
+    "Technology Stack"
+        "Frontend"
+            "React": 35
+            "CSS": 15
+            "HTML": 10
+        "Backend"
+            "Node.js": 25
+            "Express": 10
+            "MongoDB": 15
+        "DevOps"
+            "Docker": 10
+            "Kubernetes": 15
+            "CI/CD": 5
+    </pre>
+
+    <script type="module">
+      import mermaid from './mermaid.esm.mjs';
+      mermaid.initialize({
+        theme: 'forest',
+        logLevel: 1,
+        securityLevel: 'loose',
+      });
+    </script>
+  </body>
+</html>

docs/community/contributing.md

@@ -301,7 +301,7 @@ If you are adding a feature, you will definitely need to add tests. Depending on
 
 Unit tests are tests that test a single function or module. They are the easiest to write and the fastest to run.
 
-Unit tests are mandatory for all code except the renderers. (The renderers are tested with integration tests.)
+Unit tests are mandatory for all code except the layout tests. (The layouts are tested with integration tests.)
 
 We use [Vitest](https://vitest.dev) to run unit tests.
 
@@ -327,6 +327,30 @@ When using Docker prepend your command with `./run`:
 ./run pnpm test
 ```
 
+##### Testing the DOM
+
+One can use `jsdomIt` to test any part of Mermaid that interacts with the DOM, as long as it is not related to the layout.
+
+The function `jsdomIt` ([developed in utils.ts](../../tests/util.ts)) overrides `it` from `vitest`, and creates a pseudo-browser environment that works almost like the real deal for the duration of the test. It uses JSDOM to create a DOM, and adds objects `window` and `document` to `global` to mock the browser environment.
+
+> \[!NOTE]
+> The layout cannot work in `jsdomIt` tests because JSDOM has no rendering engine, hence the pseudo-browser environment.
+
+Example :
+
+```typescript
+import { ensureNodeFromSelector, jsdomIt } from './tests/util.js';
+
+jsdomIt('should add element "thing" in the SVG', ({ svg }) => {
+  // Code in this block runs in a pseudo-browser environment
+  addThing(svg); // The svg item is the D3 selection of the SVG node
+  const svgNode = ensureNodeFromSelector('svg'); // Retrieve the DOM node using the DOM API
+  expect(svgNode.querySelector('thing')).not.toBeNull(); // Test the structure of the SVG
+});
+```
+
+They can be used to test any method that interacts with the DOM, including for testing renderers. For renderers, additional integration testing is necessary to test the layout though.
+
 #### Integration / End-to-End (E2E) Tests
 
 These test the rendering and visual appearance of the diagrams.

docs/community/new-diagram.md

@@ -111,3 +111,13 @@ const themes = {
 ```
 
 The actual options and values for the colors are defined in **src/theme/theme-\[xyz].js**. If you provide the options your diagram needs in the existing theme files then the theming will work smoothly without hiccups.
+
+## Examples
+
+The `@mermaid-js/examples` package contains a collection of examples that are used by tools like mermaid.live to help users get started with the new diagram.
+
+You can duplicate an existing diagram example file, eg: `packages/examples/src/examples/flowchart.ts`, and modify it with details specific to your diagram.
+
+Then you can import the example in the `packages/examples/src/index.ts` file and add it to the `examples` array.
+
+Each diagram should have at least one example, and that should be marked as default. It is good to add more examples to showcase different features of the diagram.

docs/config/setup/defaultConfig/variables/configKeys.md

@@ -12,4 +12,4 @@
 
 > `const` **configKeys**: `Set`<`string`>
 
-Defined in: [packages/mermaid/src/defaultConfig.ts:278](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/defaultConfig.ts#L278)
+Defined in: [packages/mermaid/src/defaultConfig.ts:290](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/defaultConfig.ts#L290)

docs/config/setup/mermaid/interfaces/ExternalDiagramDefinition.md

@@ -10,7 +10,7 @@
 
 # Interface: ExternalDiagramDefinition
 
-Defined in: [packages/mermaid/src/diagram-api/types.ts:99](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/diagram-api/types.ts#L99)
+Defined in: [packages/mermaid/src/diagram-api/types.ts:94](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/diagram-api/types.ts#L94)
 
 ## Properties
 
@@ -18,7 +18,7 @@ Defined in: [packages/mermaid/src/diagram-api/types.ts:99](https://github.com/me
 
 > **detector**: `DiagramDetector`
 
-Defined in: [packages/mermaid/src/diagram-api/types.ts:101](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/diagram-api/types.ts#L101)
+Defined in: [packages/mermaid/src/diagram-api/types.ts:96](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/diagram-api/types.ts#L96)
 
 ---
 
@@ -26,7 +26,7 @@ Defined in: [packages/mermaid/src/diagram-api/types.ts:101](https://github.com/m
 
 > **id**: `string`
 
-Defined in: [packages/mermaid/src/diagram-api/types.ts:100](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/diagram-api/types.ts#L100)
+Defined in: [packages/mermaid/src/diagram-api/types.ts:95](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/diagram-api/types.ts#L95)
 
 ---
 
@@ -34,4 +34,4 @@ Defined in: [packages/mermaid/src/diagram-api/types.ts:100](https://github.com/m
 
 > **loader**: `DiagramLoader`
 
-Defined in: [packages/mermaid/src/diagram-api/types.ts:102](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/diagram-api/types.ts#L102)
+Defined in: [packages/mermaid/src/diagram-api/types.ts:97](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/diagram-api/types.ts#L97)

docs/config/setup/mermaid/interfaces/LayoutData.md

@@ -10,7 +10,7 @@
 
 # Interface: LayoutData
 
-Defined in: [packages/mermaid/src/rendering-util/types.ts:159](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/rendering-util/types.ts#L159)
+Defined in: [packages/mermaid/src/rendering-util/types.ts:145](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/rendering-util/types.ts#L145)
 
 ## Indexable
 
@@ -22,7 +22,7 @@ Defined in: [packages/mermaid/src/rendering-util/types.ts:159](https://github.co
 
 > **config**: [`MermaidConfig`](MermaidConfig.md)
 
-Defined in: [packages/mermaid/src/rendering-util/types.ts:162](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/rendering-util/types.ts#L162)
+Defined in: [packages/mermaid/src/rendering-util/types.ts:148](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/rendering-util/types.ts#L148)
 
 ---
 
@@ -30,7 +30,7 @@ Defined in: [packages/mermaid/src/rendering-util/types.ts:162](https://github.co
 
 > **edges**: `Edge`\[]
 
-Defined in: [packages/mermaid/src/rendering-util/types.ts:161](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/rendering-util/types.ts#L161)
+Defined in: [packages/mermaid/src/rendering-util/types.ts:147](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/rendering-util/types.ts#L147)
 
 ---
 
@@ -38,4 +38,4 @@ Defined in: [packages/mermaid/src/rendering-util/types.ts:161](https://github.co
 
 > **nodes**: `Node`\[]
 
-Defined in: [packages/mermaid/src/rendering-util/types.ts:160](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/rendering-util/types.ts#L160)
+Defined in: [packages/mermaid/src/rendering-util/types.ts:146](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/rendering-util/types.ts#L146)

docs/config/setup/mermaid/interfaces/Mermaid.md

@@ -10,7 +10,7 @@
 
 # Interface: Mermaid
 
-Defined in: [packages/mermaid/src/mermaid.ts:418](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L418)
+Defined in: [packages/mermaid/src/mermaid.ts:429](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L429)
 
 ## Properties
 
@@ -18,7 +18,7 @@ Defined in: [packages/mermaid/src/mermaid.ts:418](https://github.com/mermaid-js/
 
 > **contentLoaded**: () => `void`
 
-Defined in: [packages/mermaid/src/mermaid.ts:436](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L436)
+Defined in: [packages/mermaid/src/mermaid.ts:447](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L447)
 
 \##contentLoaded Callback function that is called when page is loaded. This functions fetches
 configuration for mermaid rendering and calls init for rendering the mermaid diagrams on the
@@ -34,7 +34,7 @@ page.
 
 > **detectType**: (`text`, `config`?) => `string`
 
-Defined in: [packages/mermaid/src/mermaid.ts:438](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L438)
+Defined in: [packages/mermaid/src/mermaid.ts:449](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L449)
 
 Detects the type of the graph text.
 
@@ -86,11 +86,28 @@ A graph definition key
 
 ---
 
+### getRegisteredDiagramsMetadata()
+
+> **getRegisteredDiagramsMetadata**: () => `Pick`<[`ExternalDiagramDefinition`](ExternalDiagramDefinition.md), `"id"`>\[]
+
+Defined in: [packages/mermaid/src/mermaid.ts:451](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L451)
+
+Gets the metadata for all registered diagrams.
+Currently only the id is returned.
+
+#### Returns
+
+`Pick`<[`ExternalDiagramDefinition`](ExternalDiagramDefinition.md), `"id"`>\[]
+
+An array of objects with the id of the diagram.
+
+---
+
 ### ~~init()~~
 
 > **init**: (`config`?, `nodes`?, `callback`?) => `Promise`<`void`>
 
-Defined in: [packages/mermaid/src/mermaid.ts:431](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L431)
+Defined in: [packages/mermaid/src/mermaid.ts:442](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L442)
 
 ## init
 
@@ -138,7 +155,7 @@ Use [initialize](Mermaid.md#initialize) and [run](Mermaid.md#run) instead.
 
 > **initialize**: (`config`) => `void`
 
-Defined in: [packages/mermaid/src/mermaid.ts:435](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L435)
+Defined in: [packages/mermaid/src/mermaid.ts:446](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L446)
 
 Used to set configurations for mermaid.
 This function should be called before the run function.
@@ -161,7 +178,7 @@ Configuration object for mermaid.
 
 > **mermaidAPI**: `Readonly`<{ `defaultConfig`: [`MermaidConfig`](MermaidConfig.md); `getConfig`: () => [`MermaidConfig`](MermaidConfig.md); `getDiagramFromText`: (`text`, `metadata`) => `Promise`<`Diagram`>; `getSiteConfig`: () => [`MermaidConfig`](MermaidConfig.md); `globalReset`: () => `void`; `initialize`: (`userOptions`) => `void`; `parse`: (`text`, `parseOptions`) => `Promise`<`false` | [`ParseResult`](ParseResult.md)>(`text`, `parseOptions`?) => `Promise`<[`ParseResult`](ParseResult.md)>; `render`: (`id`, `text`, `svgContainingElement`?) => `Promise`<[`RenderResult`](RenderResult.md)>; `reset`: () => `void`; `setConfig`: (`conf`) => [`MermaidConfig`](MermaidConfig.md); `updateSiteConfig`: (`conf`) => [`MermaidConfig`](MermaidConfig.md); }>
 
-Defined in: [packages/mermaid/src/mermaid.ts:425](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L425)
+Defined in: [packages/mermaid/src/mermaid.ts:436](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L436)
 
 **`Internal`**
 
@@ -175,7 +192,7 @@ Use [parse](Mermaid.md#parse) and [render](Mermaid.md#render) instead. Please [o
 
 > **parse**: (`text`, `parseOptions`) => `Promise`<`false` | [`ParseResult`](ParseResult.md)>(`text`, `parseOptions`?) => `Promise`<[`ParseResult`](ParseResult.md)>
 
-Defined in: [packages/mermaid/src/mermaid.ts:426](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L426)
+Defined in: [packages/mermaid/src/mermaid.ts:437](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L437)
 
 Parse the text and validate the syntax.
 
@@ -243,7 +260,7 @@ Error if the diagram is invalid and parseOptions.suppressErrors is false or not
 
 > `optional` **parseError**: [`ParseErrorFunction`](../type-aliases/ParseErrorFunction.md)
 
-Defined in: [packages/mermaid/src/mermaid.ts:420](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L420)
+Defined in: [packages/mermaid/src/mermaid.ts:431](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L431)
 
 ---
 
@@ -251,7 +268,7 @@ Defined in: [packages/mermaid/src/mermaid.ts:420](https://github.com/mermaid-js/
 
 > **registerExternalDiagrams**: (`diagrams`, `opts`) => `Promise`<`void`>
 
-Defined in: [packages/mermaid/src/mermaid.ts:434](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L434)
+Defined in: [packages/mermaid/src/mermaid.ts:445](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L445)
 
 Used to register external diagram types.
 
@@ -281,7 +298,7 @@ If opts.lazyLoad is false, the diagrams will be loaded immediately.
 
 > **registerIconPacks**: (`iconLoaders`) => `void`
 
-Defined in: [packages/mermaid/src/mermaid.ts:439](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L439)
+Defined in: [packages/mermaid/src/mermaid.ts:450](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L450)
 
 #### Parameters
 
@@ -299,7 +316,7 @@ Defined in: [packages/mermaid/src/mermaid.ts:439](https://github.com/mermaid-js/
 
 > **registerLayoutLoaders**: (`loaders`) => `void`
 
-Defined in: [packages/mermaid/src/mermaid.ts:433](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L433)
+Defined in: [packages/mermaid/src/mermaid.ts:444](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L444)
 
 #### Parameters
 
@@ -317,7 +334,7 @@ Defined in: [packages/mermaid/src/mermaid.ts:433](https://github.com/mermaid-js/
 
 > **render**: (`id`, `text`, `svgContainingElement`?) => `Promise`<[`RenderResult`](RenderResult.md)>
 
-Defined in: [packages/mermaid/src/mermaid.ts:427](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L427)
+Defined in: [packages/mermaid/src/mermaid.ts:438](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L438)
 
 #### Parameters
 
@@ -349,7 +366,7 @@ Deprecated for external use.
 
 > **run**: (`options`) => `Promise`<`void`>
 
-Defined in: [packages/mermaid/src/mermaid.ts:432](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L432)
+Defined in: [packages/mermaid/src/mermaid.ts:443](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L443)
 
 ## run
 
@@ -393,7 +410,7 @@ Optional runtime configs
 
 > **setParseErrorHandler**: (`parseErrorHandler`) => `void`
 
-Defined in: [packages/mermaid/src/mermaid.ts:437](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L437)
+Defined in: [packages/mermaid/src/mermaid.ts:448](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L448)
 
 ## setParseErrorHandler Alternative to directly setting parseError using:
 
@@ -424,4 +441,4 @@ New parseError() callback.
 
 > **startOnLoad**: `boolean`
 
-Defined in: [packages/mermaid/src/mermaid.ts:419](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L419)
+Defined in: [packages/mermaid/src/mermaid.ts:430](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L430)

docs/config/setup/mermaid/type-aliases/SVG.md

@@ -12,4 +12,4 @@
 
 > **SVG**: `d3.Selection`<`SVGSVGElement`, `unknown`, `Element` | `null`, `unknown`>
 
-Defined in: [packages/mermaid/src/diagram-api/types.ts:130](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/diagram-api/types.ts#L130)
+Defined in: [packages/mermaid/src/diagram-api/types.ts:126](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/diagram-api/types.ts#L126)

docs/config/setup/mermaid/type-aliases/SVGGroup.md

@@ -12,4 +12,4 @@
 
 > **SVGGroup**: `d3.Selection`<`SVGGElement`, `unknown`, `Element` | `null`, `unknown`>
 
-Defined in: [packages/mermaid/src/diagram-api/types.ts:132](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/diagram-api/types.ts#L132)
+Defined in: [packages/mermaid/src/diagram-api/types.ts:128](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/diagram-api/types.ts#L128)

docs/config/setup/mermaid/variables/default.md

@@ -12,4 +12,4 @@
 
 > `const` **default**: [`Mermaid`](../interfaces/Mermaid.md)
 
-Defined in: [packages/mermaid/src/mermaid.ts:442](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L442)
+Defined in: [packages/mermaid/src/mermaid.ts:454](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaid.ts#L454)

docs/ecosystem/integrations-community.md

@@ -245,7 +245,7 @@ Communication tools and platforms
 | GitHub + Mermaid         | -                                                                                                           | [🦊🔗](https://addons.mozilla.org/firefox/addon/github-mermaid/)               | -                                                                              | -                                                                                                                            | [🐙🔗](https://github.com/BackMarket/github-mermaid-extension)                                       |
 | Asciidoctor Live Preview | [🎡🔗](https://chromewebstore.google.com/detail/asciidoctorjs-live-previe/iaalpfgpbocpdfblpnhhgllgbdbchmia) | -                                                                              | -                                                                              | [🌀🔗](https://microsoftedge.microsoft.com/addons/detail/asciidoctorjs-live-previ/pefkelkanablhjdekgdahplkccnbdggd?hl=en-US) | -                                                                                                    |
 | Diagram Tab              | -                                                                                                           | -                                                                              | -                                                                              | -                                                                                                                            | [🐙🔗](https://github.com/khafast/diagramtab)                                                        |
-| Markdown Diagrams        | [🎡🔗](https://chromewebstore.google.com/detail/markdown-diagrams/pmoglnmodacnbbofbgcagndelmgaclel)         | [🦊🔗](https://addons.mozilla.org/en-US/firefox/addon/markdown-diagrams/)      | [🔴🔗](https://addons.opera.com/en/extensions/details/markdown-diagrams/)      | [🌀🔗](https://microsoftedge.microsoft.com/addons/detail/markdown-diagrams/hceenoomhhdkjjijnmlclkpenkapfihe)                 | [🐙🔗](https://github.com/marcozaccari/markdown-diagrams-browser-extension/tree/master/doc/examples) |
+| Markdown Diagrams        | [🎡🔗](https://chromewebstore.google.com/detail/markdown-diagrams/pmoglnmodacnbbofbgcagndelmgaclel)         | [🦊🔗](https://addons.mozilla.org/en-US/firefox/addon/markdown-diagrams/)      | -                                                                              | [🌀🔗](https://microsoftedge.microsoft.com/addons/detail/markdown-diagrams/hceenoomhhdkjjijnmlclkpenkapfihe)                 | [🐙🔗](https://github.com/marcozaccari/markdown-diagrams-browser-extension/tree/master/doc/examples) |
 | Markdown Viewer          | -                                                                                                           | [🦊🔗](https://addons.mozilla.org/en-US/firefox/addon/markdown-viewer-chrome/) | -                                                                              | -                                                                                                                            | [🐙🔗](https://github.com/simov/markdown-viewer)                                                     |
 | Extensions for Mermaid   | -                                                                                                           | -                                                                              | [🔴🔗](https://addons.opera.com/en/extensions/details/extensions-for-mermaid/) | -                                                                                                                            | [🐙🔗](https://github.com/Stefan-S/mermaid-extension)                                                |
 | Chrome Diagrammer        | [🎡🔗](https://chromewebstore.google.com/detail/chrome-diagrammer/bkpbgjmkomfoakfklcjeoegkklgjnnpk)         | -                                                                              | -                                                                              | -                                                                                                                            | -                                                                                                    |

docs/ecosystem/mermaid-chart.md

@@ -30,7 +30,7 @@ Try the Ultimate AI, Mermaid, and Visual Diagramming Suite by creating an accoun
 
   Official Mermaid Chart plugins:
 
-  - [Mermaid Chart GPT](https://chat.openai.com/g/g-1IRFKwq4G-mermaid-chart)
+  - [Mermaid Chart GPT](https://chatgpt.com/g/g-684cc36f30208191b21383b88650a45d-mermaid-chart-diagrams-and-charts)
   - [Confluence](https://marketplace.atlassian.com/apps/1234056/mermaid-chart-for-confluence?hosting=cloud&tab=overview)
   - [Jira](https://marketplace.atlassian.com/apps/1234810/mermaid-chart-for-jira?tab=overview&hosting=cloud)
   - [Visual Studio Code](https://marketplace.visualstudio.com/items?itemName=MermaidChart.vscode-mermaid-chart)

docs/layouts/development.md

@@ -1,177 +0,0 @@
-> **Warning**
->
-> ## THIS IS AN AUTOGENERATED FILE. DO NOT EDIT.
->
-> ## Please edit the corresponding file in [/packages/mermaid/src/docs/layouts/development.md](../../packages/mermaid/src/docs/layouts/development.md).
-
-# 🛠️ How to Create a New Layout Algorithm in Mermaid
-
-Mermaid supports pluggable layout engines, and contributors can add custom layout algorithms to support specialized rendering needs such as clustered layouts, nested structures, or domain-specific visualizations.
-
-This guide outlines the steps required to **create and integrate a new layout algorithm** into the Mermaid codebase.
-
----
-
-## 📦 Prerequisites
-
-Before starting, ensure the following:
-
-- You have [Node.js](https://nodejs.org/) installed.
-- You have [pnpm](https://pnpm.io/) installed globally:
-  ```bash
-  npm install -g pnpm
-  ```
-
----
-
-## 🔄 Step-by-Step Integration
-
-### 1. Clone the Mermaid Repository
-
-```bash
-git clone https://github.com/mermaid-js/mermaid.git
-cd mermaid
-```
-
-### 2. Install Dependencies
-
-Mermaid uses `pnpm` for dependency management:
-
-```bash
-pnpm i
-```
-
-### 3. Start the Development Server
-
-This will spin up a local dev environment with hot reload:
-
-```bash
-pnpm dev
-```
-
----
-
-## 🧠 Implementing Your Custom Layout Algorithm
-
-### 4. Create Your Layout Folder
-
-Navigate to the relevant source directory and create a folder for your new algorithm:
-
-```bash
-cd packages/mermaid/src/layout
-mkdir myCustomLayout
-touch myCustomLayout/index.ts
-```
-
-> 📁 You can organize supporting files, utils, and types inside this folder.
-
-### 5. Register the Layout Algorithm
-
-Open the file:
-
-```
-packages/mermaid/src/rendering-util/render.ts
-```
-
-Inside the function `registerDefaultLayoutLoaders`, find the `layoutLoaders` array. Add your layout here:
-
-```ts
-registerDefaultLayoutLoaders([
-  ...,
-  {
-    id: 'myCustomLayout',
-    loader: () => import('../layout/myCustomLayout'),
-  },
-]);
-```
-
-This tells Mermaid how to load your layout dynamically by name (`id`).
-
----
-
-## 🧪 Testing Your Algorithm
-
-### 6. Create a Test File
-
-To visually test your layout implementation, create a test HTML file in:
-
-```
-cypress/platform/
-```
-
-Example:
-
-```bash
-touch cypress/platform/myCustomLayoutTest.html
-```
-
-Inside the file, load your diagram like this:
-
-```html
-<!DOCTYPE html>
-<html>
-  <head>
-    <script type="module">
-      import mermaid from '/dist/mermaid.esm.mjs';
-
-      mermaid.initialize({
-        startOnLoad: true,
-        theme: 'default',
-        layout: 'myCustomLayout', // Use your layout here
-      });
-    </script>
-  </head>
-  <body>
-    <div class="mermaid">graph TD A[Node A] --> B[Node B] B --> C[Node C]</div>
-  </body>
-</html>
-```
-
-### 7. Open in Browser
-
-After running `pnpm dev`, open your test in the browser:
-
-```
-http://localhost:9000/myCustomLayoutTest.html
-```
-
-You should see your diagram rendered using your new layout engine.
-
----
-
-## 📝 Tips
-
-- Keep your layout algorithm modular and readable.
-- Use TypeScript types and helper functions for better structure.
-- Add comments and constraints where necessary.
-- If applicable, create a unit test and add a visual test for Cypress.
-
----
-
-## 📚 Example File Structure
-
-```
-packages/
-└── mermaid/
-    └── src/
-        └── layout/
-            └── myCustomLayout/
-                ├── index.ts
-                ├── utils.ts
-                └── types.ts
-```
-
----
-
-## ✅ Final Checklist
-
-- [ ] All dependencies installed via `pnpm i`
-- [ ] Layout folder and files created under `src/layout/`
-- [ ] Entry registered in `registerDefaultLayoutLoaders`
-- [ ] HTML test file added under `cypress/platform/`
-- [ ] Diagram renders as expected at `localhost:9000`
-- [ ] Code is linted and documented
-
----
-
-> 💡 You’re now ready to build advanced layout algorithms and contribute to Mermaid's growing visualization capabilities!

docs/layouts/introduction.md

@@ -1,138 +0,0 @@
-> **Warning**
->
-> ## THIS IS AN AUTOGENERATED FILE. DO NOT EDIT.
->
-> ## Please edit the corresponding file in [/packages/mermaid/src/docs/layouts/introduction.md](../../packages/mermaid/src/docs/layouts/introduction.md).
-
-# 📊 Layout Algorithms in Mermaid
-
-Mermaid is a popular JavaScript-based diagramming tool that supports auto-layout for graphs using pluggable layout engines. Layout algorithms play a critical role in rendering nodes and edges in a clean, readable, and meaningful way. Mermaid currently uses engines like **Dagre** and **ELK**, and will soon introduce a powerful new layout engine: **IPSep-CoLa**.
-
----
-
-## 🔹 Dagre Layout
-
-**Dagre** is a layout engine inspired by the **Sugiyama algorithm**, optimized for directed acyclic graphs (DAGs). It arranges nodes in layers and computes edge routing to minimize crossings and improve readability.
-
-### Key Features:
-
-- **Layered (Sugiyama-style) layout**: Ideal for top-down or left-to-right flow.
-- **Edge routing**: Attempts to reduce edge crossings and bends.
-- **Ranking**: Vertices are assigned ranks to group related elements into the same level.
-- **Lightweight and fast**: Suitable for small to medium-sized graphs.
-
-### Technical Overview:
-
-- Works in four stages:
-  1. **Cycle Removal**
-  2. **Layer Assignment**
-  3. **Node Ordering**
-  4. **Coordinate Assignment**
-- Outputs crisp layouts where edge direction is clear and logical.
-
-### Limitations:
-
-- No native support for **grouped or nested structures**.
-- Not ideal for graphs with **non-hierarchical** or **dense cyclic connections**.
-- Limited edge label placement capabilities.
-
----
-
-## 🔸 ELK (Eclipse Layout Kernel)
-
-**ELK** is a modular, extensible layout framework developed as part of the Eclipse ecosystem. It supports a wide variety of graph types and layout strategies.
-
-### Key Features:
-
-- **Multiple layout styles**: Hierarchical, force-based, layered, orthogonal, etc.
-- **Support for ports**: Allows fine-grained edge anchoring on specific sides of nodes.
-- **Group and hierarchy awareness**: Ideal for nested and compartmentalized diagrams.
-- **Rich configuration**: Offers control over spacing, edge routing, direction, padding, and more.
-
-### Technical Overview:
-
-- Uses a **model-driven approach** with a well-defined intermediate representation (ELK Graph Model).
-- Different engines are plugged in depending on the chosen layout strategy.
-- Works well with large, complex, and deeply nested graphs.
-
-### Limitations:
-
-- Requires verbose configuration for best results.
-- Can be slower than Dagre for small or simple diagrams.
-- More complex to integrate and control dynamically.
-
----
-
-## 🆕 IPSep-CoLa
-
-### 🌐 Introduction
-
-**IPSep-CoLa** stands for **Incremental Procedure for Separation Constraint Layout**, a next-generation layout algorithm tailored for **grouped, nested, and labeled graphs**. It is an enhancement over standard force-directed layouts, offering constraint enforcement and iterative refinement.
-
-It is particularly useful for diagrams where:
-
-- **Group integrity** is important (e.g., modules, clusters).
-- **Edge labels** need smart placement.
-- **Overlaps** must be prevented even under tight space constraints.
-
----
-
-### ⚙️ How IPSep-CoLa Works
-
-#### 1. **Constraint-Based Force Simulation**:
-
-It builds on top of standard force-directed approaches (like CoLa), but adds **constraints** to influence the final positions of nodes:
-
-- **Separation constraints**: Minimum distances between nodes, edge labels, and groups.
-- **Containment constraints**: Child nodes must stay within the bounds of parent groups.
-- **Alignment constraints**: Nodes can be aligned in rows or columns if desired.
-
-#### 2. **Incremental Refinement**:
-
-Unlike one-pass algorithms, IPSep-CoLa works in **phases**:
-
-- Initial layout is produced using a base force simulation.
-- The layout is iteratively adjusted using **constraint solvers**.
-- Additional forces (spring, collision avoidance, containment) are incrementally added.
-
-#### 3. **Edge Label Handling**:
-
-One of the distinguishing features of IPSep-CoLa is its support for **multi-segment edge routing with mid-edge label positioning**, ensuring labels do not clutter or overlap.
-
----
-
-### 📌 Use Cases
-
-IPSep-CoLa is ideal for:
-
-- **Hierarchical graphs** with complex nesting (e.g., software architecture, UML diagrams).
-- **Clustered views** (e.g., social network groupings).
-- **Diagrams with heavy labeling** where label placement affects readability.
-- **Diagrams with strict visual structure** needs — maintaining boundaries, margins, or padding.
-
----
-
-## 🔍 Comparison Table
-
-| Feature                   | Dagre       | ELK                 | IPSep-CoLa (Upcoming)          |
-| ------------------------- | ----------- | ------------------- | ------------------------------ |
-| Layout Type               | Layered DAG | Modular (varied)    | Constraint-driven force layout |
-| Edge Labeling             | ⚠️ Basic    | ✅ Yes              | ✅ Smart Placement             |
-| Overlap Avoidance         | ⚠️ Partial  | ✅ Configurable     | ✅ Automatic                   |
-| Layout Performance        | ✅ Fast     | ⚠️ Medium           | ⚠️ Medium                      |
-| Customization Flexibility | ⚠️ Limited  | ✅ Extensive        | ✅ Moderate to High            |
-| Best For                  | Simple DAGs | Complex hierarchies | Grouped and labeled graphs     |
-
----
-
-## 🧾 Summary
-
-Each layout engine in Mermaid serves a different purpose:
-
-- **Dagre** is best for fast, simple, and readable DAGs.
-- **ELK** is powerful for modular, layered, or port-based diagrams with a need for rich customization.
-- **IPSep-CoLa** will soon offer a flexible, constraint-respecting layout engine that excels at **visual clarity in grouped and complex diagrams**.
-
-The addition of IPSep-CoLa to Mermaid's layout stack represents a significant leap forward in layout control and quality — making it easier than ever to visualize rich, structured, and annotated graphs.
-
----

docs/layouts/ipsepcola/implementation.md

@@ -1,46 +0,0 @@
-> **Warning**
->
-> ## THIS IS AN AUTOGENERATED FILE. DO NOT EDIT.
->
-> ## Please edit the corresponding file in [/packages/mermaid/src/docs/layouts/ipsepcola/implementation.md](../../../packages/mermaid/src/docs/layouts/ipsepcola/implementation.md).
-
-## IPSEPCOLA Documentation :
-
-IPSep-CoLa: An Incremental Procedure for Separation Constraint Layout of Graphs
-
-## How IPSep-CoLa built :
-
-IPSep-CoLa follows a multi-stage process to compute a well-structured layout:
-
-1. Layer Assignment :
-   The layer assignment algorithm organizes nodes into hierarchical layers to create a structured layout for directed graphs. It begins by detecting and temporarily removing cyclic edges using a depth-first search (DFS) approach, ensuring the graph becomes a Directed Acyclic Graph (DAG) for proper layering. The algorithm then performs a topological sort using Kahn's method, calculating node ranks (layers) based on in-degree counts. Each node's layer is determined by its position in the topological order, with parent nodes always appearing in higher layers than their children to maintain proper flow direction.
-
-   The implementation handles special cases like nested nodes by considering parent-child relationships when calculating layers. Nodes without dependencies are placed in layer 0, while subsequent nodes are assigned to layers one level below their nearest parent. The algorithm efficiently processes nodes using a queue system, decrementing in-degrees as it progresses, and ultimately stores the layer information directly in the node objects. Though cyclic edges are removed during processing, they could potentially be reintroduced after layer assignment if needed for visualization purposes.
-
-2. Node ordering:
-   After assigning layers to nodes, this step organizes nodes horizontally within each layer to minimize edge crossings and create a clean, readable layout. It uses the barycenter method—a technique that positions each node based on the average position of its connected neighbors (either incoming or outgoing). Nodes with no connections are pushed to the end of their layer.
-
-   The algorithm works in multiple passes (iterations) to refine the order: first adjusting nodes based on their incoming connections (from the layer above), then outgoing connections (to the layer below). Group nodes (like containers) are handled separately—their position is determined by averaging the positions of their children, ensuring they stay properly aligned with their contents. This approach keeps the layout structured while reducing visual clutter.
-
-3. AssignInitial positions to node :
-   This step calculates the starting (x, y) positions for each node based on its assigned layer (vertical level) and order (horizontal position). Nodes are spaced evenly—horizontally using nodeSpacing and vertically using layerHeight. For example, a node in layer 2 with order 3 will be placed at (3 \_ nodeSpacing, 2 \_ layerHeight). This creates a grid-like structure where nodes align neatly in rows (layers) and columns (orders).
-
-   The initial positioning is simple but crucial—it provides a structured starting point before more advanced adjustments (like reducing edge crossings or compacting the layout) are applied. Group nodes follow the same logic, ensuring they align with their children. This method ensures a readable, organized foundation for further refinement.
-
-4. Force-Directed Simulation with Constraints :
-
-   - Spring Forces: Attracts connected nodes to maintain desired edge lengths.
-   - Repulsion Forces: Pushes nodes apart to prevent overlaps.
-   - Group Constraints: Ensures child nodes stay near their parent groups.
-   - Cooling Factor: Gradually reduces movement to stabilize the layout.
-
-5. Incremental Refinement :
-
-   - Overlap Resolution: Iteratively adjusts node positions to eliminate overlaps.
-   - Edge Routing: Computes smooth paths for edges, including curved paths for parallel edges and self-loops.
-   - Group Boundary Adjustment: Dynamically resizes group containers to fit nested elements.
-
-6. Adjusting the Final Layout :
-   This step takes the calculated node positions and applies them to the visual elements of the graph. Nodes are placed at their assigned (x, y) coordinates—regular nodes are positioned directly, while group nodes (clusters) are rendered as containers that may include other nodes. Edges (connections between nodes) are drawn based on their start and end points, ensuring they follow the structured layout.
-
-   The adjustment phase bridges the mathematical layout with the actual rendering, updating the SVG or canvas elements to reflect the computed positions. This ensures that the graph is not only logically organized but also visually coherent, with proper spacing, alignment, and connections. The result is a clean, readable diagram ready for display.

docs/layouts/ipsepcola/overview.md

@@ -1,186 +0,0 @@
-> **Warning**
->
-> ## THIS IS AN AUTOGENERATED FILE. DO NOT EDIT.
->
-> ## Please edit the corresponding file in [/packages/mermaid/src/docs/layouts/ipsepcola/overview.md](../../../packages/mermaid/src/docs/layouts/ipsepcola/overview.md).
-
-## IPSEPCOLA Documentation :
-
-IPSep-CoLa: An Incremental Procedure for Separation Constraint Layout of Graphs
-
-## Introduction :
-
-IPSep-CoLa (Incremental Procedure for Separation Constraint Layout) is an advanced graph layout algorithm designed to handle complex diagrams with separation constraints, such as grouped nodes, edge labels, and hierarchical structures. Unlike traditional force-directed algorithms, IPSep-CoLa incrementally refines node positions while enforcing geometric constraints to prevent overlaps, maintain group cohesion, and optimize edge routing.
-
-The algorithm is particularly effective for visualizing nested and clustered graphs, where maintaining clear separation between elements is crucial. It combines techniques from force-directed layout, constraint satisfaction, and incremental refinement to produce readable and aesthetically pleasing diagrams.
-
-## How IPSep-CoLa Works :
-
-IPSep-CoLa follows a multi-stage process to compute a well-structured layout:
-
-1. Graph Preprocessing :
-   Cycle Removal: Detects and temporarily removes cyclic dependencies to enable proper layering.
-   Layer Assignment: Assigns nodes to hierarchical layers using topological sorting.
-   Node Ordering: Uses the barycenter heuristic to minimize edge crossings within layers.
-
-2. Force-Directed Simulation with Constraints :
-   Spring Forces: Attracts connected nodes to maintain desired edge lengths.
-   Repulsion Forces: Pushes nodes apart to prevent overlaps.
-   Group Constraints: Ensures child nodes stay near their parent groups.
-   Cooling Factor: Gradually reduces movement to stabilize the layout.
-
-3. Incremental Refinement :
-   Overlap Resolution: Iteratively adjusts node positions to eliminate overlaps.
-   Edge Routing: Computes smooth paths for edges, including curved paths for parallel edges and self-loops.
-   Group Boundary Adjustment: Dynamically resizes group containers to fit nested elements.
-
-## Key Features :
-
-1. Group-Aware Layout: Maintains separation between nested structures.
-2. Edge Label Placement: Uses edge labels as virtual nodes and automatically positions labels inside their parent groups.
-3. Stable Convergence: Uses cooling factors and incremental updates for smooth refinement.
-4. Support for Self-Loops & Parallel Edges: Avoids visual clutter with intelligent edge routing.
-
-## Use Cases :
-
-1. Hierarchical Diagrams (org charts, flowcharts, decision trees)
-2. Network Visualization (dependency graphs, data pipelines)
-3. Interactive Graph Editors (real-time layout adjustments)
-4. Clustered Data Visualization (UML diagrams, biological networks)
-
-## **Examples**
-
-### **Example 1**
-
-```
----
-config:
-   layout: ipsepCola
----
-
-flowchart TD
-CEO --> MKT["Marketing Head"]
-CEO --> ENG["Engineering Head"]
-ENG --> DEV["Developer"]
-ENG --> QA["QA Tester"]
-```
-
-### **Example 2**
-
-```
----
-config:
-   layout: ipsepCola
----
-
-flowchart TD
-  Start["Start"] --> Red{"Is it red?"}
-  Red -- Yes --> Round{"Is it round?"}
-  Red -- No --> NotApple["❌ Not an Apple"]
-  Round -- Yes --> Apple["✅ It's an Apple"]
-  Round -- No --> NotApple2["❌ Not an Apple"]
-```
-
-### **Example 3**
-
-```
----
-config:
-   layout: ipsepCola
----
-
-flowchart TD
-A[Module A] --> B[Module B]
-A --> C[Module C]
-B --> D[Module D]
-C --> D
-D --> E[Module E]
-```
-
-### **Example 4**
-
-```
----
-config:
-   layout: ipsepCola
----
-
-flowchart TD
-Source1["📦 Raw Data (CSV)"]
-Source2["🌐 API Data"]
-
-Source1 --> Clean["🧹 Clean & Format"]
-Source2 --> Clean
-
-Clean --> Transform["🔄 Transform Data"]
-Transform --> Load["📥 Load into Data Warehouse"]
-Load --> BI["📊 BI Dashboard"]
-```
-
-### **Example 5**
-
-```
----
-config:
-   layout: ipsepCola
----
-classDiagram
-  class Person {
-    -String name
-    -int age
-    +greet(): void
-  }
-
-  class Employee {
-    -int employeeId
-    +calculateSalary(): float
-  }
-
-  class Manager {
-    -String department
-    +assignTask(): void
-  }
-
-  Person <|-- Employee
-  Employee <|-- Manager
-```
-
-### **Example 6**
-
-```
----
-config:
-   layout: ipsepCola
----
-flowchart TD
-  Sunlight["☀️ Sunlight"] --> Leaf["🌿 Leaf"]
-  Leaf --> Glucose["🍬 Glucose"]
-  Leaf --> Oxygen["💨 Oxygen"]
-```
-
-### **Example 7**
-
-```
----
-config:
-   layout: ipsepCola
----
-flowchart TD
-  Internet["🌐 Internet"] --> Router["📡 Router"]
-  Router --> Server1["🖥️ Server A"]
-  Router --> Server2["🖥️ Server B"]
-  Router --> Laptop["💻 Laptop"]
-
-  %% New device joins
-  Router --> Mobile["📱 Mobile"]
-```
-
-## Limitations :
-
-1. Computational Cost: More iterations may be needed for large graphs (>1000 nodes).
-2. Parameter Tuning: Requires adjustments for different graph types.
-3. Non-Determinism: Small variations may occur between runs due to force simulation.
-
-## Conclusion :
-
-IPSep-CoLa provides a robust solution for constraint-based graph layout, particularly for structured and clustered diagrams. By combining incremental refinement with separation constraints, it achieves readable and well-organized visualizations. Future improvements could include GPU acceleration and adaptive parameter tuning for large-scale graphs.

docs/syntax/packet.md

@@ -17,7 +17,7 @@ This diagram type is particularly useful for developers, network engineers, educ
 ## Syntax
 
 ```
-packet-beta
+packet
 start: "Block name" %% Single-bit block
 start-end: "Block name" %% Multi-bit blocks
 ... More Fields ...
@@ -28,7 +28,7 @@ start-end: "Block name" %% Multi-bit blocks
 Using start and end bit counts can be difficult, especially when modifying a design. For this we add a bit count field, which starts from the end of the previous field automagically. Use `+<count>` to set the number of bits, thus:
 
 ```
-packet-beta
+packet
 +1: "Block name" %% Single-bit block
 +8: "Block name" %% 8-bit block
 9-15: "Manually set start and end, it's fine to mix and match"
@@ -41,7 +41,7 @@ packet-beta
 ---
 title: "TCP Packet"
 ---
-packet-beta
+packet
 0-15: "Source Port"
 16-31: "Destination Port"
 32-63: "Sequence Number"
@@ -65,7 +65,7 @@ packet-beta
 ---
 title: "TCP Packet"
 ---
-packet-beta
+packet
 0-15: "Source Port"
 16-31: "Destination Port"
 32-63: "Sequence Number"
@@ -86,7 +86,7 @@ packet-beta
 ```
 
 ```mermaid-example
-packet-beta
+packet
 title UDP Packet
 +16: "Source Port"
 +16: "Destination Port"
@@ -96,7 +96,7 @@ title UDP Packet
 ```
 
 ```mermaid
-packet-beta
+packet
 title UDP Packet
 +16: "Source Port"
 +16: "Destination Port"
@@ -144,7 +144,7 @@ config:
     packet:
       startByteColor: red
 ---
-packet-beta
+packet
 0-15: "Source Port"
 16-31: "Destination Port"
 32-63: "Sequence Number"

docs/syntax/treemap.md

@@ -0,0 +1,353 @@
+> **Warning**
+>
+> ## THIS IS AN AUTOGENERATED FILE. DO NOT EDIT.
+>
+> ## Please edit the corresponding file in [/packages/mermaid/src/docs/syntax/treemap.md](../../packages/mermaid/src/docs/syntax/treemap.md).
+
+# Treemap Diagram
+
+> A treemap diagram displays hierarchical data as a set of nested rectangles. Each branch of the tree is represented by a rectangle, which is then tiled with smaller rectangles representing sub-branches.
+
+> **Warning**
+> This is a new diagram type in Mermaid. Its syntax may evolve in future versions.
+
+## Introduction
+
+Treemap diagrams are an effective way to visualize hierarchical data and show proportions between categories and subcategories. The size of each rectangle is proportional to the value it represents, making it easy to compare different parts of a hierarchy.
+
+Treemap diagrams are particularly useful for:
+
+- Visualizing hierarchical data structures
+- Comparing proportions between categories
+- Displaying large amounts of hierarchical data in a limited space
+- Identifying patterns and outliers in hierarchical data
+
+## Syntax
+
+```
+treemap-beta
+"Section 1"
+    "Leaf 1.1": 12
+    "Section 1.2"
+      "Leaf 1.2.1": 12
+"Section 2"
+    "Leaf 2.1": 20
+    "Leaf 2.2": 25
+```
+
+### Node Definition
+
+Nodes in a treemap are defined using the following syntax:
+
+- **Section/Parent nodes**: Defined with quoted text `"Section Name"`
+- **Leaf nodes with values**: Defined with quoted text followed by a colon and value `"Leaf Name": value`
+- **Hierarchy**: Created using indentation (spaces or tabs)
+- **Styling**: Nodes can be styled using the `:::class` syntax
+
+## Examples
+
+### Basic Treemap
+
+```mermaid-example
+treemap-beta
+"Category A"
+    "Item A1": 10
+    "Item A2": 20
+"Category B"
+    "Item B1": 15
+    "Item B2": 25
+```
+
+```mermaid
+treemap-beta
+"Category A"
+    "Item A1": 10
+    "Item A2": 20
+"Category B"
+    "Item B1": 15
+    "Item B2": 25
+```
+
+### Hierarchical Treemap
+
+```mermaid-example
+treemap-beta
+"Products"
+    "Electronics"
+        "Phones": 50
+        "Computers": 30
+        "Accessories": 20
+    "Clothing"
+        "Men's": 40
+        "Women's": 40
+```
+
+```mermaid
+treemap-beta
+"Products"
+    "Electronics"
+        "Phones": 50
+        "Computers": 30
+        "Accessories": 20
+    "Clothing"
+        "Men's": 40
+        "Women's": 40
+```
+
+### Treemap with Styling
+
+```mermaid-example
+treemap-beta
+"Section 1"
+    "Leaf 1.1": 12
+    "Section 1.2":::class1
+      "Leaf 1.2.1": 12
+"Section 2"
+    "Leaf 2.1": 20:::class1
+    "Leaf 2.2": 25
+    "Leaf 2.3": 12
+
+classDef class1 fill:red,color:blue,stroke:#FFD600;
+```
+
+```mermaid
+treemap-beta
+"Section 1"
+    "Leaf 1.1": 12
+    "Section 1.2":::class1
+      "Leaf 1.2.1": 12
+"Section 2"
+    "Leaf 2.1": 20:::class1
+    "Leaf 2.2": 25
+    "Leaf 2.3": 12
+
+classDef class1 fill:red,color:blue,stroke:#FFD600;
+```
+
+## Styling and Configuration
+
+Treemap diagrams can be customized using Mermaid's styling and configuration options.
+
+### Using classDef for Styling
+
+You can define custom styles for nodes using the `classDef` syntax, which is a standard feature across many Mermaid diagram types:
+
+```mermaid-example
+treemap-beta
+"Main"
+    "A": 20
+    "B":::important
+        "B1": 10
+        "B2": 15
+    "C": 5
+
+classDef important fill:#f96,stroke:#333,stroke-width:2px;
+```
+
+```mermaid
+treemap-beta
+"Main"
+    "A": 20
+    "B":::important
+        "B1": 10
+        "B2": 15
+    "C": 5
+
+classDef important fill:#f96,stroke:#333,stroke-width:2px;
+```
+
+### Theme Configuration
+
+You can customize the colors of your treemap using the theme configuration:
+
+```mermaid-example
+---
+config:
+    theme: 'forest'
+---
+treemap-beta
+"Category A"
+    "Item A1": 10
+    "Item A2": 20
+"Category B"
+    "Item B1": 15
+    "Item B2": 25
+```
+
+```mermaid
+---
+config:
+    theme: 'forest'
+---
+treemap-beta
+"Category A"
+    "Item A1": 10
+    "Item A2": 20
+"Category B"
+    "Item B1": 15
+    "Item B2": 25
+```
+
+### Diagram Padding
+
+You can adjust the padding around the treemap diagram using the `diagramPadding` configuration option:
+
+```mermaid-example
+---
+config:
+  treemap:
+    diagramPadding: 200
+---
+treemap-beta
+"Category A"
+    "Item A1": 10
+    "Item A2": 20
+"Category B"
+    "Item B1": 15
+    "Item B2": 25
+```
+
+```mermaid
+---
+config:
+  treemap:
+    diagramPadding: 200
+---
+treemap-beta
+"Category A"
+    "Item A1": 10
+    "Item A2": 20
+"Category B"
+    "Item B1": 15
+    "Item B2": 25
+```
+
+## Configuration Options
+
+The treemap diagram supports the following configuration options:
+
+| Option         | Description                                                                 | Default |
+| -------------- | --------------------------------------------------------------------------- | ------- |
+| useMaxWidth    | When true, the diagram width is set to 100% and scales with available space | true    |
+| padding        | Internal padding between nodes                                              | 10      |
+| diagramPadding | Padding around the entire diagram                                           | 8       |
+| showValues     | Whether to show values in the treemap                                       | true    |
+| nodeWidth      | Width of nodes                                                              | 100     |
+| nodeHeight     | Height of nodes                                                             | 40      |
+| borderWidth    | Width of borders                                                            | 1       |
+| valueFontSize  | Font size for values                                                        | 12      |
+| labelFontSize  | Font size for labels                                                        | 14      |
+| valueFormat    | Format for values (see Value Formatting section)                            | ','     |
+
+## Advanced Features
+
+### Value Formatting
+
+Values in treemap diagrams can be formatted to display in different ways using the `valueFormat` configuration option. This option primarily uses [D3's format specifiers](https://github.com/d3/d3-format#locale_format) to control how numbers are displayed, with some additional special cases for common formats.
+
+Some common format patterns:
+
+- `,` - Thousands separator (default)
+- `$` - Add dollar sign
+- `.1f` - Show one decimal place
+- `.1%` - Show as percentage with one decimal place
+- `$0,0` - Dollar sign with thousands separator
+- `$.2f` - Dollar sign with 2 decimal places
+- `$,.2f` - Dollar sign with thousands separator and 2 decimal places
+
+The treemap diagram supports both standard D3 format specifiers and some common currency formats that combine the dollar sign with other formatting options.
+
+Example with currency formatting:
+
+```mermaid-example
+---
+config:
+  treemap:
+    valueFormat: '$0,0'
+---
+treemap-beta
+"Budget"
+    "Operations"
+        "Salaries": 700000
+        "Equipment": 200000
+        "Supplies": 100000
+    "Marketing"
+        "Advertising": 400000
+        "Events": 100000
+```
+
+```mermaid
+---
+config:
+  treemap:
+    valueFormat: '$0,0'
+---
+treemap-beta
+"Budget"
+    "Operations"
+        "Salaries": 700000
+        "Equipment": 200000
+        "Supplies": 100000
+    "Marketing"
+        "Advertising": 400000
+        "Events": 100000
+```
+
+Example with percentage formatting:
+
+```mermaid-example
+---
+config:
+  treemap:
+    valueFormat: '$.1%'
+---
+treemap-beta
+"Market Share"
+    "Company A": 0.35
+    "Company B": 0.25
+    "Company C": 0.15
+    "Others": 0.25
+```
+
+```mermaid
+---
+config:
+  treemap:
+    valueFormat: '$.1%'
+---
+treemap-beta
+"Market Share"
+    "Company A": 0.35
+    "Company B": 0.25
+    "Company C": 0.15
+    "Others": 0.25
+```
+
+## Common Use Cases
+
+Treemap diagrams are commonly used for:
+
+1. **Financial Data**: Visualizing budget allocations, market shares, or portfolio compositions
+2. **File System Analysis**: Showing disk space usage by folders and files
+3. **Population Demographics**: Displaying population distribution across regions and subregions
+4. **Product Hierarchies**: Visualizing product categories and their sales volumes
+5. **Organizational Structures**: Representing departments and team sizes in a company
+
+## Limitations
+
+- Treemap diagrams work best when the data has a natural hierarchy
+- Very small values may be difficult to see or label in a treemap diagram
+- Deep hierarchies (many levels) can be challenging to represent clearly
+- Treemap diagrams are not well suited for representing data with negative values
+
+## Related Diagrams
+
+If treemap diagrams don't suit your needs, consider these alternatives:
+
+- [**Pie Charts**](./pie.md): For simple proportion comparisons without hierarchy
+- **Sunburst Diagrams**: For hierarchical data with a radial layout (yet to be released in Mermaid).
+- [**Sankey Diagrams**](./sankey.md): For flow-based hierarchical data
+
+## Notes
+
+The treemap diagram implementation in Mermaid is designed to be simple to use while providing powerful visualization capabilities. As this is a newer diagram type, feedback and feature requests are welcome through the Mermaid GitHub repository.

package.json

@@ -37,7 +37,7 @@
     "e2e:coverage": "start-server-and-test dev:coverage http://localhost:9000/ cypress",
     "coverage:cypress:clean": "rimraf .nyc_output coverage/cypress",
     "coverage:merge": "tsx scripts/coverage.ts",
-    "coverage": "pnpm test:coverage --run && pnpm coverage:merge",
+    "coverage": "pnpm test:coverage --run && pnpm e2e:coverage && pnpm coverage:merge",
     "ci": "vitest run",
     "test": "pnpm lint && vitest run",
     "test:watch": "vitest --watch",
@@ -64,7 +64,7 @@
   },
   "devDependencies": {
     "@applitools/eyes-cypress": "^3.44.9",
-    "@argos-ci/cypress": "^4.0.3",
+    "@argos-ci/cypress": "^5.0.2",
     "@changesets/changelog-github": "^0.5.1",
     "@changesets/cli": "^2.27.12",
     "@cspell/eslint-plugin": "^8.19.3",
@@ -83,13 +83,13 @@
     "@vitest/spy": "^3.0.6",
     "@vitest/ui": "^3.0.6",
     "ajv": "^8.17.1",
-    "chokidar": "^4.0.3",
+    "chokidar": "3.6.0",
     "concurrently": "^9.1.2",
     "cors": "^2.8.5",
     "cpy-cli": "^5.0.0",
     "cross-env": "^7.0.3",
-    "cspell": "^8.6.1",
-    "cypress": "^14.0.3",
+    "cspell": "^9.1.3",
+    "cypress": "^14.5.1",
     "cypress-image-snapshot": "^4.0.1",
     "cypress-split": "^1.24.14",
     "esbuild": "^0.25.0",
@@ -109,25 +109,25 @@
     "globals": "^16.0.0",
     "globby": "^14.0.2",
     "husky": "^9.1.7",
-    "jest": "^29.7.0",
+    "jest": "^30.0.4",
     "jison": "^0.4.18",
     "js-yaml": "^4.1.0",
-    "jsdom": "^26.0.0",
+    "jsdom": "^26.1.0",
     "langium-cli": "3.3.0",
-    "lint-staged": "^15.2.11",
+    "lint-staged": "^16.1.2",
     "markdown-table": "^3.0.4",
     "nyc": "^17.1.0",
     "path-browserify": "^1.0.1",
     "prettier": "^3.5.2",
     "prettier-plugin-jsdoc": "^1.3.2",
     "rimraf": "^6.0.1",
-    "rollup-plugin-visualizer": "^5.14.0",
+    "rollup-plugin-visualizer": "^6.0.3",
     "start-server-and-test": "^2.0.10",
     "tslib": "^2.8.1",
     "tsx": "^4.7.3",
     "typescript": "~5.7.3",
     "typescript-eslint": "^8.32.0",
-    "vite": "^6.1.1",
+    "vite": "^7.0.3",
     "vite-plugin-istanbul": "^7.0.0",
     "vitest": "^3.0.6"
   },
@@ -139,8 +139,13 @@
       "roughjs": "patches/roughjs.patch"
     },
     "onlyBuiltDependencies": [
+      "canvas",
       "cypress",
       "esbuild"
+    ],
+    "ignoredBuiltDependencies": [
+      "sharp",
+      "vue-demi"
     ]
   }
 }

packages/examples/package.json

@@ -0,0 +1,32 @@
+{
+  "name": "@mermaid-js/examples",
+  "version": "0.0.1-beta.1",
+  "description": "Mermaid examples package",
+  "author": "Sidharth Vinod",
+  "type": "module",
+  "module": "./dist/mermaid-examples.core.mjs",
+  "types": "./dist/mermaid.d.ts",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/mermaid-examples.core.mjs",
+      "default": "./dist/mermaid-examples.core.mjs"
+    }
+  },
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "clean": "rimraf dist"
+  },
+  "dependencies": {},
+  "devDependencies": {
+    "mermaid": "workspace:*"
+  },
+  "peerDependencies": {
+    "mermaid": "workspace:~"
+  },
+  "publishConfig": {
+    "access": "public"
+  }
+}

packages/examples/src/example.spec.ts

@@ -0,0 +1,34 @@
+import mermaid from 'mermaid';
+import { diagramData } from './index.js';
+
+describe('examples', () => {
+  beforeAll(async () => {
+    // To trigger the diagram registration
+    await mermaid.registerExternalDiagrams([]);
+  });
+
+  it('should have examples for each diagrams', () => {
+    const skippedDiagrams = [
+      // These diagrams have no examples
+      'error',
+      'info',
+      '---',
+      // These diagrams have v2 versions, with examples
+      'class',
+      'graph',
+      'flowchart-elk',
+      'flowchart',
+      'state',
+    ];
+    const diagrams = mermaid
+      .getRegisteredDiagramsMetadata()
+      .filter((d) => !skippedDiagrams.includes(d.id));
+    expect(diagrams.length).toBeGreaterThan(0);
+    for (const diagram of diagrams) {
+      const data = diagramData.find((d) => d.id === diagram.id)!;
+      expect(data, `Example for ${diagram.id} is not defined`).toBeDefined();
+      expect(data.examples.length).toBeGreaterThan(0);
+      expect(data.examples.filter((e) => e.isDefault).length).toBe(1);
+    }
+  });
+});

packages/examples/src/examples/architecture.ts

@@ -0,0 +1,24 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'architecture',
+  name: 'Architecture Diagram',
+  description: 'Visualize system architecture and components',
+  examples: [
+    {
+      title: 'Basic System Architecture',
+      isDefault: true,
+      code: `architecture-beta
+    group api(cloud)[API]
+
+    service db(database)[Database] in api
+    service disk1(disk)[Storage] in api
+    service disk2(disk)[Storage] in api
+    service server(server)[Server] in api
+
+    db:L -- R:server
+    disk1:T -- B:server
+    disk2:T -- B:db`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/block.ts

@@ -0,0 +1,27 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'block',
+  name: 'Block Diagram',
+  description: 'Create block-based visualizations with beta styling',
+  examples: [
+    {
+      title: 'Basic Block Layout',
+      isDefault: true,
+      code: `block-beta
+columns 1
+  db(("DB"))
+  blockArrowId6<["&nbsp;&nbsp;&nbsp;"]>(down)
+  block:ID
+    A
+    B["A wide one in the middle"]
+    C
+  end
+  space
+  D
+  ID --> D
+  C --> D
+  style B fill:#969,stroke:#333,stroke-width:4px`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/c4.ts

@@ -0,0 +1,47 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'c4',
+  name: 'C4 Diagram',
+  description:
+    'Visualize software architecture using the C4 model (Context, Container, Component, Code)',
+  examples: [
+    {
+      title: 'Internet Banking System Context',
+      isDefault: true,
+      code: `C4Context
+    title System Context diagram for Internet Banking System
+    Enterprise_Boundary(b0, "BankBoundary0") {
+        Person(customerA, "Banking Customer A", "A customer of the bank, with personal bank accounts.")
+        Person(customerB, "Banking Customer B")
+        Person_Ext(customerC, "Banking Customer C", "desc")
+
+        Person(customerD, "Banking Customer D", "A customer of the bank, <br/> with personal bank accounts.")
+
+        System(SystemAA, "Internet Banking System", "Allows customers to view information about their bank accounts, and make payments.")
+
+        Enterprise_Boundary(b1, "BankBoundary") {
+            SystemDb_Ext(SystemE, "Mainframe Banking System", "Stores all of the core banking information about customers, accounts, transactions, etc.")
+
+            System_Boundary(b2, "BankBoundary2") {
+                System(SystemA, "Banking System A")
+                System(SystemB, "Banking System B", "A system of the bank, with personal bank accounts. next line.")
+            }
+
+            System_Ext(SystemC, "E-mail system", "The internal Microsoft Exchange e-mail system.")
+            SystemDb(SystemD, "Banking System D Database", "A system of the bank, with personal bank accounts.")
+
+            Boundary(b3, "BankBoundary3", "boundary") {
+                SystemQueue(SystemF, "Banking System F Queue", "A system of the bank.")
+                SystemQueue_Ext(SystemG, "Banking System G Queue", "A system of the bank, with personal bank accounts.")
+            }
+        }
+    }
+
+    BiRel(customerA, SystemAA, "Uses")
+    BiRel(SystemAA, SystemE, "Uses")
+    Rel(SystemAA, SystemC, "Sends e-mails", "SMTP")
+    Rel(SystemC, customerA, "Sends e-mails to")`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/class.ts

@@ -0,0 +1,34 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'classDiagram',
+  name: 'Class Diagram',
+  description: 'Visualize class structures and relationships in object-oriented programming',
+  examples: [
+    {
+      title: 'Basic Class Inheritance',
+      isDefault: true,
+      code: `classDiagram
+    Animal <|-- Duck
+    Animal <|-- Fish
+    Animal <|-- Zebra
+    Animal : +int age
+    Animal : +String gender
+    Animal: +isMammal()
+    Animal: +mate()
+    class Duck{
+      +String beakColor
+      +swim()
+      +quack()
+    }
+    class Fish{
+      -int sizeInFeet
+      -canEat()
+    }
+    class Zebra{
+      +bool is_wild
+      +run()
+    }`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/er.ts

@@ -0,0 +1,36 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'er',
+  name: 'Entity Relationship Diagram',
+  description: 'Visualize database schemas and relationships between entities',
+  examples: [
+    {
+      title: 'Basic ER Schema',
+      isDefault: true,
+      code: `erDiagram
+    CUSTOMER ||--o{ ORDER : places
+    ORDER ||--|{ ORDER_ITEM : contains
+    PRODUCT ||--o{ ORDER_ITEM : includes
+    CUSTOMER {
+        string id
+        string name
+        string email
+    }
+    ORDER {
+        string id
+        date orderDate
+        string status
+    }
+    PRODUCT {
+        string id
+        string name
+        float price
+    }
+    ORDER_ITEM {
+        int quantity
+        float price
+    }`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/flowchart.ts

@@ -0,0 +1,19 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'flowchart-v2',
+  name: 'Flowchart',
+  description: 'Visualize flowcharts and directed graphs',
+  examples: [
+    {
+      title: 'Basic Flowchart',
+      isDefault: true,
+      code: `flowchart TD
+    A[Christmas] -->|Get money| B(Go shopping)
+    B --> C{Let me think}
+    C -->|One| D[Laptop]
+    C -->|Two| E[iPhone]
+    C -->|Three| F[fa:fa-car Car]`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/gantt.ts

@@ -0,0 +1,22 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'gantt',
+  name: 'Gantt Chart',
+  description: 'Visualize project schedules and timelines',
+  examples: [
+    {
+      title: 'Basic Project Timeline',
+      isDefault: true,
+      code: `gantt
+    title A Gantt Diagram
+    dateFormat  YYYY-MM-DD
+    section Section
+    A task           :a1, 2014-01-01, 30d
+    Another task     :after a1  , 20d
+    section Another
+    Task in sec      :2014-01-12  , 12d
+    another task      : 24d`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/git.ts

@@ -0,0 +1,28 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'gitGraph',
+  name: 'Git Graph',
+  description: 'Visualize Git repository history and branch relationships',
+  examples: [
+    {
+      title: 'Basic Git Flow',
+      isDefault: true,
+      code: `gitGraph
+    commit
+    branch develop
+    checkout develop
+    commit
+    commit
+    checkout main
+    merge develop
+    commit
+    branch feature
+    checkout feature
+    commit
+    commit
+    checkout main
+    merge feature`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/kanban.ts

@@ -0,0 +1,37 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'kanban',
+  name: 'Kanban Diagram',
+  description: 'Visualize work items in a Kanban board',
+  examples: [
+    {
+      title: 'Kanban Diagram',
+      isDefault: true,
+      code: `---
+config:
+  kanban:
+    ticketBaseUrl: 'https://github.com/mermaid-js/mermaid/issues/#TICKET#'
+---
+kanban
+  Todo
+    [Create Documentation]
+    docs[Create Blog about the new diagram]
+  [In progress]
+    id6[Create renderer so that it works in all cases. We also add some extra text here for testing purposes. And some more just for the extra flare.]
+  id9[Ready for deploy]
+    id8[Design grammar]@{ assigned: 'knsv' }
+  id10[Ready for test]
+    id4[Create parsing tests]@{ ticket: 2038, assigned: 'K.Sveidqvist', priority: 'High' }
+    id66[last item]@{ priority: 'Very Low', assigned: 'knsv' }
+  id11[Done]
+    id5[define getData]
+    id2[Title of diagram is more than 100 chars when user duplicates diagram with 100 char]@{ ticket: 2036, priority: 'Very High'}
+    id3[Update DB function]@{ ticket: 2037, assigned: knsv, priority: 'High' }
+
+  id12[Can't reproduce]
+    id3[Weird flickering in Firefox]
+`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/mindmap.ts

@@ -0,0 +1,32 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'mindmap',
+  name: 'Mindmap',
+  description: 'Visualize ideas and concepts in a tree-like structure',
+  examples: [
+    {
+      title: 'Basic Mindmap',
+      isDefault: true,
+      code: `mindmap
+  root((mindmap))
+    Origins
+      Long history
+      ::icon(fa fa-book)
+      Popularisation
+        British popular psychology author Tony Buzan
+    Research
+      On effectiveness<br/>and features
+      On Automatic creation
+        Uses
+            Creative techniques
+            Strategic planning
+            Argument mapping
+    Tools
+      Pen and paper
+      Mermaid`,
+    },
+  ],
+} satisfies DiagramMetadata;
+
+// cspell:ignore Buzan

packages/examples/src/examples/packet.ts

@@ -0,0 +1,34 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'packet',
+  name: 'Packet Diagram',
+  description: 'Visualize packet data and network traffic',
+  examples: [
+    {
+      title: 'TCP Packet',
+      isDefault: true,
+      code: `---
+title: "TCP Packet"
+---
+packet
+0-15: "Source Port"
+16-31: "Destination Port"
+32-63: "Sequence Number"
+64-95: "Acknowledgment Number"
+96-99: "Data Offset"
+100-105: "Reserved"
+106: "URG"
+107: "ACK"
+108: "PSH"
+109: "RST"
+110: "SYN"
+111: "FIN"
+112-127: "Window"
+128-143: "Checksum"
+144-159: "Urgent Pointer"
+160-191: "(Options and Padding)"
+192-255: "Data (variable length)"`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/pie.ts

@@ -0,0 +1,17 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'pie',
+  name: 'Pie Chart',
+  description: 'Visualize data as proportional segments of a circle',
+  examples: [
+    {
+      title: 'Basic Pie Chart',
+      isDefault: true,
+      code: `pie title Pets adopted by volunteers
+    "Dogs" : 386
+    "Cats" : 85
+    "Rats" : 15`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/quadrant-chart.ts

@@ -0,0 +1,27 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'quadrantChart',
+  name: 'Quadrant Chart',
+  description: 'Visualize items in a 2x2 matrix based on two variables',
+  examples: [
+    {
+      title: 'Product Positioning',
+      isDefault: true,
+      code: `quadrantChart
+    title Reach and engagement of campaigns
+    x-axis Low Reach --> High Reach
+    y-axis Low Engagement --> High Engagement
+    quadrant-1 We should expand
+    quadrant-2 Need to promote
+    quadrant-3 Re-evaluate
+    quadrant-4 May be improved
+    Campaign A: [0.3, 0.6]
+    Campaign B: [0.45, 0.23]
+    Campaign C: [0.57, 0.69]
+    Campaign D: [0.78, 0.34]
+    Campaign E: [0.40, 0.34]
+    Campaign F: [0.35, 0.78]`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/radar.ts

@@ -0,0 +1,25 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'radar',
+  name: 'Radar Diagram',
+  description: 'Visualize data in a radial format',
+  examples: [
+    {
+      title: 'Student Grades',
+      isDefault: true,
+      code: `---
+title: "Grades"
+---
+radar-beta
+  axis m["Math"], s["Science"], e["English"]
+  axis h["History"], g["Geography"], a["Art"]
+  curve a["Alice"]{85, 90, 80, 70, 75, 90}
+  curve b["Bob"]{70, 75, 85, 80, 90, 85}
+
+  max 100
+  min 0
+`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/requirement.ts

@@ -0,0 +1,27 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'requirement',
+  name: 'Requirement Diagram',
+  description: 'Visualize system requirements and their relationships',
+  examples: [
+    {
+      title: 'Basic Requirements',
+      code: `requirementDiagram
+
+    requirement test_req {
+    id: 1
+    text: the test text.
+    risk: high
+    verifymethod: test
+    }
+
+    element test_entity {
+    type: simulation
+    }
+
+    test_entity - satisfies -> test_req`,
+      isDefault: true,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/sankey.ts

@@ -0,0 +1,88 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'sankey',
+  name: 'Sankey Diagram',
+  description: 'Visualize flow quantities between different stages or processes',
+  examples: [
+    {
+      title: 'Energy Flow',
+      isDefault: true,
+      code: `---
+config:
+  sankey:
+    showValues: false
+---
+sankey-beta
+
+Agricultural 'waste',Bio-conversion,124.729
+Bio-conversion,Liquid,0.597
+Bio-conversion,Losses,26.862
+Bio-conversion,Solid,280.322
+Bio-conversion,Gas,81.144
+Biofuel imports,Liquid,35
+Biomass imports,Solid,35
+Coal imports,Coal,11.606
+Coal reserves,Coal,63.965
+Coal,Solid,75.571
+District heating,Industry,10.639
+District heating,Heating and cooling - commercial,22.505
+District heating,Heating and cooling - homes,46.184
+Electricity grid,Over generation / exports,104.453
+Electricity grid,Heating and cooling - homes,113.726
+Electricity grid,H2 conversion,27.14
+Electricity grid,Industry,342.165
+Electricity grid,Road transport,37.797
+Electricity grid,Agriculture,4.412
+Electricity grid,Heating and cooling - commercial,40.858
+Electricity grid,Losses,56.691
+Electricity grid,Rail transport,7.863
+Electricity grid,Lighting & appliances - commercial,90.008
+Electricity grid,Lighting & appliances - homes,93.494
+Gas imports,NGas,40.719
+Gas reserves,NGas,82.233
+Gas,Heating and cooling - commercial,0.129
+Gas,Losses,1.401
+Gas,Thermal generation,151.891
+Gas,Agriculture,2.096
+Gas,Industry,48.58
+Geothermal,Electricity grid,7.013
+H2 conversion,H2,20.897
+H2 conversion,Losses,6.242
+H2,Road transport,20.897
+Hydro,Electricity grid,6.995
+Liquid,Industry,121.066
+Liquid,International shipping,128.69
+Liquid,Road transport,135.835
+Liquid,Domestic aviation,14.458
+Liquid,International aviation,206.267
+Liquid,Agriculture,3.64
+Liquid,National navigation,33.218
+Liquid,Rail transport,4.413
+Marine algae,Bio-conversion,4.375
+NGas,Gas,122.952
+Nuclear,Thermal generation,839.978
+Oil imports,Oil,504.287
+Oil reserves,Oil,107.703
+Oil,Liquid,611.99
+Other waste,Solid,56.587
+Other waste,Bio-conversion,77.81
+Pumped heat,Heating and cooling - homes,193.026
+Pumped heat,Heating and cooling - commercial,70.672
+Solar PV,Electricity grid,59.901
+Solar Thermal,Heating and cooling - homes,19.263
+Solar,Solar Thermal,19.263
+Solar,Solar PV,59.901
+Solid,Agriculture,0.882
+Solid,Thermal generation,400.12
+Solid,Industry,46.477
+Thermal generation,Electricity grid,525.531
+Thermal generation,Losses,787.129
+Thermal generation,District heating,79.329
+Tidal,Electricity grid,9.452
+UK land based bioenergy,Bio-conversion,182.01
+Wave,Electricity grid,19.013
+Wind,Electricity grid,289.366`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/sequence.ts

@@ -0,0 +1,18 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'sequence',
+  name: 'Sequence Diagram',
+  description: 'Visualize interactions between objects over time',
+  examples: [
+    {
+      title: 'Basic Sequence',
+      isDefault: true,
+      code: `sequenceDiagram
+    Alice->>+John: Hello John, how are you?
+    Alice->>+John: John, can you hear me?
+    John-->>-Alice: Hi Alice, I can hear you!
+    John-->>-Alice: I feel great!`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/state.ts

@@ -0,0 +1,20 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'stateDiagram',
+  name: 'State Diagram',
+  description: 'Visualize the states and transitions of a system',
+  examples: [
+    {
+      title: 'Basic State Diagram',
+      code: `stateDiagram-v2
+    [*] --> Still
+    Still --> [*]
+    Still --> Moving
+    Moving --> Still
+    Moving --> Crash
+    Crash --> [*]`,
+      isDefault: true,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/timeline.ts

@@ -0,0 +1,20 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'timeline',
+  name: 'Timeline Diagram',
+  description: 'Visualize events and milestones in chronological order',
+  examples: [
+    {
+      title: 'Project Timeline',
+      isDefault: true,
+      code: `timeline
+    title History of Social Media Platform
+    2002 : LinkedIn
+    2004 : Facebook
+         : Google
+    2005 : YouTube
+    2006 : Twitter`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/treemap.ts

@@ -0,0 +1,21 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'treemap',
+  name: 'Treemap',
+  description: 'Visualize hierarchical data as nested rectangles',
+  examples: [
+    {
+      title: 'Treemap',
+      isDefault: true,
+      code: `treemap-beta
+"Section 1"
+    "Leaf 1.1": 12
+    "Section 1.2"
+      "Leaf 1.2.1": 12
+"Section 2"
+    "Leaf 2.1": 20
+    "Leaf 2.2": 25`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/user-journey.ts

@@ -0,0 +1,22 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'journey',
+  name: 'User Journey Diagram',
+  description: 'Visualize user interactions and experiences with a system',
+  examples: [
+    {
+      title: 'My Working Day',
+      isDefault: true,
+      code: `journey
+    title My working day
+    section Go to work
+      Make tea: 5: Me
+      Go upstairs: 3: Me
+      Do work: 1: Me, Cat
+    section Go home
+      Go downstairs: 5: Me
+      Sit down: 5: Me`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/examples/xychart.ts

@@ -0,0 +1,19 @@
+import type { DiagramMetadata } from '../types.js';
+
+export default {
+  id: 'xychart',
+  name: 'XY Chart',
+  description: 'Create scatter plots and line charts with customizable axes',
+  examples: [
+    {
+      title: 'Sales Revenue',
+      isDefault: true,
+      code: `xychart-beta
+    title "Sales Revenue"
+    x-axis [jan, feb, mar, apr, may, jun, jul, aug, sep, oct, nov, dec]
+    y-axis "Revenue (in $)" 4000 --> 11000
+    bar [5000, 6000, 7500, 8200, 9500, 10500, 11000, 10200, 9200, 8500, 7000, 6000]
+    line [5000, 6000, 7500, 8200, 9500, 10500, 11000, 10200, 9200, 8500, 7000, 6000]`,
+    },
+  ],
+} satisfies DiagramMetadata;

packages/examples/src/index.ts

@@ -0,0 +1,48 @@
+import type { DiagramMetadata } from './types.js';
+import flowChart from './examples/flowchart.js';
+import c4 from './examples/c4.js';
+import kanban from './examples/kanban.js';
+import classDiagram from './examples/class.js';
+import sequenceDiagram from './examples/sequence.js';
+import pieDiagram from './examples/pie.js';
+import userJourneyDiagram from './examples/user-journey.js';
+import mindmapDiagram from './examples/mindmap.js';
+import requirementDiagram from './examples/requirement.js';
+import radarDiagram from './examples/radar.js';
+import stateDiagram from './examples/state.js';
+import erDiagram from './examples/er.js';
+import gitDiagram from './examples/git.js';
+import architectureDiagram from './examples/architecture.js';
+import xychartDiagram from './examples/xychart.js';
+import sankeyDiagram from './examples/sankey.js';
+import ganttDiagram from './examples/gantt.js';
+import timelineDiagram from './examples/timeline.js';
+import quadrantChart from './examples/quadrant-chart.js';
+import packetDiagram from './examples/packet.js';
+import blockDiagram from './examples/block.js';
+import treemapDiagram from './examples/treemap.js';
+
+export const diagramData: DiagramMetadata[] = [
+  flowChart,
+  c4,
+  kanban,
+  classDiagram,
+  sequenceDiagram,
+  pieDiagram,
+  userJourneyDiagram,
+  mindmapDiagram,
+  requirementDiagram,
+  radarDiagram,
+  stateDiagram,
+  erDiagram,
+  gitDiagram,
+  architectureDiagram,
+  xychartDiagram,
+  sankeyDiagram,
+  ganttDiagram,
+  timelineDiagram,
+  quadrantChart,
+  packetDiagram,
+  blockDiagram,
+  treemapDiagram,
+];

packages/examples/src/types.ts

@@ -0,0 +1,12 @@
+export interface Example {
+  title: string;
+  code: string;
+  isDefault?: boolean;
+}
+
+export interface DiagramMetadata {
+  id: string;
+  name: string;
+  description: string;
+  examples: Example[];
+}

packages/examples/tsconfig.json

@@ -0,0 +1,11 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "./dist",
+    "rootDir": "./src",
+    "module": "Node16",
+    "moduleResolution": "Node16"
+  },
+  "include": ["src/**/*"],
+  "exclude": ["node_modules", "dist"]
+}

packages/mermaid/CHANGELOG.md

@@ -1,5 +1,25 @@
 # mermaid
 
+## 11.8.1
+
+### Patch Changes
+
+- Updated dependencies [[`0da2922`](https://github.com/mermaid-js/mermaid/commit/0da2922ee7f47959e324ec10d3d21ee70594f557)]:
+  - @mermaid-js/parser@0.6.1
+
+## 11.8.0
+
+### Minor Changes
+
+- [#6590](https://github.com/mermaid-js/mermaid/pull/6590) [`f338802`](https://github.com/mermaid-js/mermaid/commit/f338802642cdecf5b7ed6c19a20cf2a81effbbee) Thanks [@knsv](https://github.com/knsv)! - Adding support for the new diagram type nested treemap
+
+### Patch Changes
+
+- [#6707](https://github.com/mermaid-js/mermaid/pull/6707) [`592c5bb`](https://github.com/mermaid-js/mermaid/commit/592c5bb880c3b942710a2878d386bcb3eb35c137) Thanks [@darshanr0107](https://github.com/darshanr0107)! - fix: Log a warning when duplicate commit IDs are encountered in gitGraph to help identify and debug rendering issues caused by non-unique IDs.
+
+- Updated dependencies [[`f338802`](https://github.com/mermaid-js/mermaid/commit/f338802642cdecf5b7ed6c19a20cf2a81effbbee)]:
+  - @mermaid-js/parser@0.6.0
+
 ## 11.7.0
 
 ### Minor Changes

packages/mermaid/package.json

@@ -1,6 +1,6 @@
 {
   "name": "mermaid",
-  "version": "11.7.0",
+  "version": "11.8.1",
   "description": "Markdown-ish syntax for generating flowcharts, mindmaps, sequence diagrams, class diagrams, gantt charts, git graphs and more.",
   "type": "module",
   "module": "./dist/mermaid.core.mjs",
@@ -82,7 +82,7 @@
     "katex": "^0.16.9",
     "khroma": "^2.1.0",
     "lodash-es": "^4.17.21",
-    "marked": "^15.0.7",
+    "marked": "^16.0.0",
     "roughjs": "^4.6.6",
     "stylis": "^4.3.6",
     "ts-dedent": "^2.2.0",
@@ -105,13 +105,14 @@
     "@types/stylis": "^4.2.7",
     "@types/uuid": "^10.0.0",
     "ajv": "^8.17.1",
-    "chokidar": "^4.0.3",
+    "canvas": "^3.1.0",
+    "chokidar": "3.6.0",
     "concurrently": "^9.1.2",
     "csstree-validator": "^4.0.1",
     "globby": "^14.0.2",
     "jison": "^0.4.18",
     "js-base64": "^3.7.7",
-    "jsdom": "^26.0.0",
+    "jsdom": "^26.1.0",
     "json-schema-to-typescript": "^15.0.4",
     "micromatch": "^4.0.8",
     "path-browserify": "^1.0.1",

packages/mermaid/src/accessibility.spec.ts

@@ -1,28 +1,25 @@
-import { MockedD3 } from './tests/MockedD3.js';
-import { setA11yDiagramInfo, addSVGa11yTitleDescription } from './accessibility.js';
-import type { D3Element } from './types.js';
+import { addSVGa11yTitleDescription, setA11yDiagramInfo } from './accessibility.js';
+import { ensureNodeFromSelector, jsdomIt } from './tests/util.js';
+import { expect } from 'vitest';
 
 describe('accessibility', () => {
-  const fauxSvgNode: MockedD3 = new MockedD3();
-
   describe('setA11yDiagramInfo', () => {
-    it('should set svg element role to "graphics-document document"', () => {
-      const svgAttrSpy = vi.spyOn(fauxSvgNode, 'attr').mockReturnValue(fauxSvgNode);
-      setA11yDiagramInfo(fauxSvgNode, 'flowchart');
-      expect(svgAttrSpy).toHaveBeenCalledWith('role', 'graphics-document document');
+    jsdomIt('should set svg element role to "graphics-document document"', ({ svg }) => {
+      setA11yDiagramInfo(svg, 'flowchart');
+      const svgNode = ensureNodeFromSelector('svg');
+      expect(svgNode.getAttribute('role')).toBe('graphics-document document');
     });
 
-    it('should set aria-roledescription to the diagram type', () => {
-      const svgAttrSpy = vi.spyOn(fauxSvgNode, 'attr').mockReturnValue(fauxSvgNode);
-      setA11yDiagramInfo(fauxSvgNode, 'flowchart');
-      expect(svgAttrSpy).toHaveBeenCalledWith('aria-roledescription', 'flowchart');
+    jsdomIt('should set aria-roledescription to the diagram type', ({ svg }) => {
+      setA11yDiagramInfo(svg, 'flowchart');
+      const svgNode = ensureNodeFromSelector('svg');
+      expect(svgNode.getAttribute('aria-roledescription')).toBe('flowchart');
     });
 
-    it('should not set aria-roledescription if the diagram type is empty', () => {
-      const svgAttrSpy = vi.spyOn(fauxSvgNode, 'attr').mockReturnValue(fauxSvgNode);
-      setA11yDiagramInfo(fauxSvgNode, '');
-      expect(svgAttrSpy).toHaveBeenCalledTimes(1);
-      expect(svgAttrSpy).toHaveBeenCalledWith('role', expect.anything()); // only called to set the role
+    jsdomIt('should not set aria-roledescription if the diagram type is empty', ({ svg }) => {
+      setA11yDiagramInfo(svg, '');
+      const svgNode = ensureNodeFromSelector('svg');
+      expect(svgNode.getAttribute('aria-roledescription')).toBeNull();
     });
   });
 
@@ -39,115 +36,78 @@ describe('accessibility', () => {
         expect(noInsertAttrSpy).not.toHaveBeenCalled();
       });
 
-      // convenience functions to DRY up the spec
-
-      function expectAriaLabelledByItTitleId(
-        svgD3Node: D3Element,
-        title: string | undefined,
-        desc: string | undefined,
-        givenId: string
-      ): void {
-        const svgAttrSpy = vi.spyOn(svgD3Node, 'attr').mockReturnValue(svgD3Node);
-        addSVGa11yTitleDescription(svgD3Node, title, desc, givenId);
-        expect(svgAttrSpy).toHaveBeenCalledWith('aria-labelledby', `chart-title-${givenId}`);
-      }
-
-      function expectAriaDescribedByItDescId(
-        svgD3Node: D3Element,
-        title: string | undefined,
-        desc: string | undefined,
-        givenId: string
-      ): void {
-        const svgAttrSpy = vi.spyOn(svgD3Node, 'attr').mockReturnValue(svgD3Node);
-        addSVGa11yTitleDescription(svgD3Node, title, desc, givenId);
-        expect(svgAttrSpy).toHaveBeenCalledWith('aria-describedby', `chart-desc-${givenId}`);
-      }
-
-      function a11yTitleTagInserted(
-        svgD3Node: D3Element,
-        title: string | undefined,
-        desc: string | undefined,
-        givenId: string,
-        callNumber: number
-      ): void {
-        a11yTagInserted(svgD3Node, title, desc, givenId, callNumber, 'title', title);
-      }
-
-      function a11yDescTagInserted(
-        svgD3Node: D3Element,
-        title: string | undefined,
-        desc: string | undefined,
-        givenId: string,
-        callNumber: number
-      ): void {
-        a11yTagInserted(svgD3Node, title, desc, givenId, callNumber, 'desc', desc);
-      }
-
-      function a11yTagInserted(
-        _svgD3Node: D3Element,
-        title: string | undefined,
-        desc: string | undefined,
-        givenId: string,
-        callNumber: number,
-        expectedPrefix: string,
-        expectedText: string | undefined
-      ): void {
-        const fauxInsertedD3: MockedD3 = new MockedD3();
-        const svginsertpy = vi.spyOn(fauxSvgNode, 'insert').mockReturnValue(fauxInsertedD3);
-        const titleAttrSpy = vi.spyOn(fauxInsertedD3, 'attr').mockReturnValue(fauxInsertedD3);
-        const titleTextSpy = vi.spyOn(fauxInsertedD3, 'text');
-
-        addSVGa11yTitleDescription(fauxSvgNode, title, desc, givenId);
-        expect(svginsertpy).toHaveBeenCalledWith(expectedPrefix, ':first-child');
-        expect(titleAttrSpy).toHaveBeenCalledWith('id', `chart-${expectedPrefix}-${givenId}`);
-        expect(titleTextSpy).toHaveBeenNthCalledWith(callNumber, expectedText);
-      }
-
       describe('with a11y title', () => {
         const a11yTitle = 'a11y title';
 
         describe('with a11y description', () => {
           const a11yDesc = 'a11y description';
 
-          it('should set aria-labelledby to the title id inserted as a child', () => {
-            expectAriaLabelledByItTitleId(fauxSvgNode, a11yTitle, a11yDesc, givenId);
+          jsdomIt('should set aria-labelledby to the title id inserted as a child', ({ svg }) => {
+            addSVGa11yTitleDescription(svg, a11yTitle, a11yDesc, givenId);
+            const svgNode = ensureNodeFromSelector('svg');
+            expect(svgNode.getAttribute('aria-labelledby')).toBe(`chart-title-${givenId}`);
           });
 
-          it('should set aria-describedby to the description id inserted as a child', () => {
-            expectAriaDescribedByItDescId(fauxSvgNode, a11yTitle, a11yDesc, givenId);
-          });
+          jsdomIt(
+            'should set aria-describedby to the description id inserted as a child',
+            ({ svg }) => {
+              addSVGa11yTitleDescription(svg, a11yTitle, a11yDesc, givenId);
+              const svgNode = ensureNodeFromSelector('svg');
+              expect(svgNode.getAttribute('aria-describedby')).toBe(`chart-desc-${givenId}`);
+            }
+          );
 
-          it('should insert title tag as the first child with the text set to the accTitle given', () => {
-            a11yTitleTagInserted(fauxSvgNode, a11yTitle, a11yDesc, givenId, 2);
-          });
+          jsdomIt(
+            'should insert title tag as the first child with the text set to the accTitle given',
+            ({ svg }) => {
+              addSVGa11yTitleDescription(svg, a11yTitle, a11yDesc, givenId);
+              const svgNode = ensureNodeFromSelector('svg');
+              const titleNode = ensureNodeFromSelector('title', svgNode);
+              expect(titleNode?.innerHTML).toBe(a11yTitle);
+            }
+          );
 
-          it('should insert desc tag as the 2nd child with the text set to accDescription given', () => {
-            a11yDescTagInserted(fauxSvgNode, a11yTitle, a11yDesc, givenId, 1);
-          });
+          jsdomIt(
+            'should insert desc tag as the 2nd child with the text set to accDescription given',
+            ({ svg }) => {
+              addSVGa11yTitleDescription(svg, a11yTitle, a11yDesc, givenId);
+              const svgNode = ensureNodeFromSelector('svg');
+              const descNode = ensureNodeFromSelector('desc', svgNode);
+              expect(descNode?.innerHTML).toBe(a11yDesc);
+            }
+          );
         });
 
-        describe(`without a11y description`, () => {
+        describe(`without a11y description`, {}, () => {
           const a11yDesc = undefined;
 
-          it('should set aria-labelledby to the title id inserted as a child', () => {
-            expectAriaLabelledByItTitleId(fauxSvgNode, a11yTitle, a11yDesc, givenId);
+          jsdomIt('should set aria-labelledby to the title id inserted as a child', ({ svg }) => {
+            addSVGa11yTitleDescription(svg, a11yTitle, a11yDesc, givenId);
+            const svgNode = ensureNodeFromSelector('svg');
+            expect(svgNode.getAttribute('aria-labelledby')).toBe(`chart-title-${givenId}`);
           });
 
-          it('should not set aria-describedby', () => {
-            const svgAttrSpy = vi.spyOn(fauxSvgNode, 'attr').mockReturnValue(fauxSvgNode);
-            addSVGa11yTitleDescription(fauxSvgNode, a11yTitle, a11yDesc, givenId);
-            expect(svgAttrSpy).not.toHaveBeenCalledWith('aria-describedby', expect.anything());
+          jsdomIt('should not set aria-describedby', ({ svg }) => {
+            addSVGa11yTitleDescription(svg, a11yTitle, a11yDesc, givenId);
+            const svgNode = ensureNodeFromSelector('svg');
+            expect(svgNode.getAttribute('aria-describedby')).toBeNull();
           });
 
-          it('should insert title tag as the first child with the text set to the accTitle given', () => {
-            a11yTitleTagInserted(fauxSvgNode, a11yTitle, a11yDesc, givenId, 1);
-          });
+          jsdomIt(
+            'should insert title tag as the first child with the text set to the accTitle given',
+            ({ svg }) => {
+              addSVGa11yTitleDescription(svg, a11yTitle, a11yDesc, givenId);
+              const svgNode = ensureNodeFromSelector('svg');
+              const titleNode = ensureNodeFromSelector('title', svgNode);
+              expect(titleNode?.innerHTML).toBe(a11yTitle);
+            }
+          );
 
-          it('should not insert description tag', () => {
-            const fauxTitle: MockedD3 = new MockedD3();
-            const svginsertpy = vi.spyOn(fauxSvgNode, 'insert').mockReturnValue(fauxTitle);
-            addSVGa11yTitleDescription(fauxSvgNode, a11yTitle, a11yDesc, givenId);
-            expect(svginsertpy).not.toHaveBeenCalledWith('desc', ':first-child');
+          jsdomIt('should not insert description tag', ({ svg }) => {
+            addSVGa11yTitleDescription(svg, a11yTitle, a11yDesc, givenId);
+            const svgNode = ensureNodeFromSelector('svg');
+            const descNode = svgNode.querySelector('desc');
+            expect(descNode).toBeNull();
           });
         });
       });
@@ -158,55 +118,66 @@ describe('accessibility', () => {
         describe('with a11y description', () => {
           const a11yDesc = 'a11y description';
 
-          it('should not set aria-labelledby', () => {
-            const svgAttrSpy = vi.spyOn(fauxSvgNode, 'attr').mockReturnValue(fauxSvgNode);
-            addSVGa11yTitleDescription(fauxSvgNode, a11yTitle, a11yDesc, givenId);
-            expect(svgAttrSpy).not.toHaveBeenCalledWith('aria-labelledby', expect.anything());
+          jsdomIt('should not set aria-labelledby', ({ svg }) => {
+            addSVGa11yTitleDescription(svg, a11yTitle, a11yDesc, givenId);
+            const svgNode = ensureNodeFromSelector('svg');
+            expect(svgNode.getAttribute('aria-labelledby')).toBeNull();
           });
 
-          it('should not insert title tag', () => {
-            const fauxTitle: MockedD3 = new MockedD3();
-            const svginsertpy = vi.spyOn(fauxSvgNode, 'insert').mockReturnValue(fauxTitle);
-            addSVGa11yTitleDescription(fauxSvgNode, a11yTitle, a11yDesc, givenId);
-            expect(svginsertpy).not.toHaveBeenCalledWith('title', ':first-child');
+          jsdomIt('should not insert title tag', ({ svg }) => {
+            addSVGa11yTitleDescription(svg, a11yTitle, a11yDesc, givenId);
+            const svgNode = ensureNodeFromSelector('svg');
+            const titleNode = svgNode.querySelector('title');
+            expect(titleNode).toBeNull();
           });
 
-          it('should set aria-describedby to the description id inserted as a child', () => {
-            expectAriaDescribedByItDescId(fauxSvgNode, a11yTitle, a11yDesc, givenId);
-          });
+          jsdomIt(
+            'should set aria-describedby to the description id inserted as a child',
+            ({ svg }) => {
+              addSVGa11yTitleDescription(svg, a11yTitle, a11yDesc, givenId);
+              const svgNode = ensureNodeFromSelector('svg');
+              expect(svgNode.getAttribute('aria-describedby')).toBe(`chart-desc-${givenId}`);
+            }
+          );
 
-          it('should insert desc tag as the 2nd child with the text set to accDescription given', () => {
-            a11yDescTagInserted(fauxSvgNode, a11yTitle, a11yDesc, givenId, 1);
-          });
+          jsdomIt(
+            'should insert desc tag as the 2nd child with the text set to accDescription given',
+            ({ svg }) => {
+              addSVGa11yTitleDescription(svg, a11yTitle, a11yDesc, givenId);
+              const svgNode = ensureNodeFromSelector('svg');
+              const descNode = ensureNodeFromSelector('desc', svgNode);
+              expect(descNode?.innerHTML).toBe(a11yDesc);
+            }
+          );
         });
 
         describe('without a11y description', () => {
           const a11yDesc = undefined;
 
-          it('should not set aria-labelledby', () => {
-            const svgAttrSpy = vi.spyOn(fauxSvgNode, 'attr').mockReturnValue(fauxSvgNode);
-            addSVGa11yTitleDescription(fauxSvgNode, a11yTitle, a11yDesc, givenId);
-            expect(svgAttrSpy).not.toHaveBeenCalledWith('aria-labelledby', expect.anything());
+          jsdomIt('should not set aria-labelledby', ({ svg }) => {
+            addSVGa11yTitleDescription(svg, a11yTitle, a11yDesc, givenId);
+            const svgNode = ensureNodeFromSelector('svg');
+            expect(svgNode.getAttribute('aria-labelledby')).toBeNull();
           });
 
-          it('should not set aria-describedby', () => {
-            const svgAttrSpy = vi.spyOn(fauxSvgNode, 'attr').mockReturnValue(fauxSvgNode);
-            addSVGa11yTitleDescription(fauxSvgNode, a11yTitle, a11yDesc, givenId);
-            expect(svgAttrSpy).not.toHaveBeenCalledWith('aria-describedby', expect.anything());
+          jsdomIt('should not set aria-describedby', ({ svg }) => {
+            addSVGa11yTitleDescription(svg, a11yTitle, a11yDesc, givenId);
+            const svgNode = ensureNodeFromSelector('svg');
+            expect(svgNode.getAttribute('aria-describedby')).toBeNull();
           });
 
-          it('should not insert title tag', () => {
-            const fauxTitle: MockedD3 = new MockedD3();
-            const svginsertpy = vi.spyOn(fauxSvgNode, 'insert').mockReturnValue(fauxTitle);
-            addSVGa11yTitleDescription(fauxSvgNode, a11yTitle, a11yDesc, givenId);
-            expect(svginsertpy).not.toHaveBeenCalledWith('title', ':first-child');
+          jsdomIt('should not insert title tag', ({ svg }) => {
+            addSVGa11yTitleDescription(svg, a11yTitle, a11yDesc, givenId);
+            const svgNode = ensureNodeFromSelector('svg');
+            const titleNode = svgNode.querySelector('title');
+            expect(titleNode).toBeNull();
           });
 
-          it('should not insert  description tag', () => {
-            const fauxDesc: MockedD3 = new MockedD3();
-            const svginsertpy = vi.spyOn(fauxSvgNode, 'insert').mockReturnValue(fauxDesc);
-            addSVGa11yTitleDescription(fauxSvgNode, a11yTitle, a11yDesc, givenId);
-            expect(svginsertpy).not.toHaveBeenCalledWith('desc', ':first-child');
+          jsdomIt('should not insert  description tag', ({ svg }) => {
+            addSVGa11yTitleDescription(svg, a11yTitle, a11yDesc, givenId);
+            const svgNode = ensureNodeFromSelector('svg');
+            const descNode = svgNode.querySelector('desc');
+            expect(descNode).toBeNull();
           });
         });
       });

packages/mermaid/src/defaultConfig.ts

@@ -262,6 +262,18 @@ const config: RequiredDeep<MermaidConfig> = {
   radar: {
     ...defaultConfigJson.radar,
   },
+  treemap: {
+    useMaxWidth: true,
+    padding: 10,
+    diagramPadding: 8,
+    showValues: true,
+    nodeWidth: 100,
+    nodeHeight: 40,
+    borderWidth: 1,
+    valueFontSize: 12,
+    labelFontSize: 14,
+    valueFormat: ',',
+  },
 };
 
 // eslint-disable-next-line @typescript-eslint/no-explicit-any

packages/mermaid/src/diagram-api/diagram-orchestration.ts

@@ -27,6 +27,7 @@ import block from '../diagrams/block/blockDetector.js';
 import architecture from '../diagrams/architecture/architectureDetector.js';
 import { registerLazyLoadedDiagrams } from './detectType.js';
 import { registerDiagram } from './diagramAPI.js';
+import { treemap } from '../diagrams/treemap/detector.js';
 import '../type.d.ts';
 
 let hasLoadedDiagrams = false;
@@ -99,6 +100,7 @@ export const addDiagrams = () => {
     packet,
     xychart,
     block,
-    radar
+    radar,
+    treemap
   );
 };

packages/mermaid/src/diagram-api/loadDiagram.ts

@@ -7,20 +7,21 @@ export const loadRegisteredDiagrams = async () => {
   // Load all lazy loaded diagrams in parallel
   const results = await Promise.allSettled(
     Object.entries(detectors).map(async ([key, { detector, loader }]) => {
-      if (loader) {
+      if (!loader) {
+        return;
+      }
+      try {
+        getDiagram(key);
+      } catch {
         try {
-          getDiagram(key);
-        } catch {
-          try {
-            // Register diagram if it is not already registered
-            const { diagram, id } = await loader();
-            registerDiagram(id, diagram, detector);
-          } catch (err) {
-            // Remove failed diagram from detectors
-            log.error(`Failed to load external diagram with key ${key}. Removing from detectors.`);
-            delete detectors[key];
-            throw err;
-          }
+          // Register diagram if it is not already registered
+          const { diagram, id } = await loader();
+          registerDiagram(id, diagram, detector);
+        } catch (err) {
+          // Remove failed diagram from detectors
+          log.error(`Failed to load external diagram with key ${key}. Removing from detectors.`);
+          delete detectors[key];
+          throw err;
         }
       }
     })

packages/mermaid/src/diagram-api/types.ts

@@ -1,6 +1,6 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
 import type * as d3 from 'd3';
-import type { SetRequired } from 'type-fest';
+import type { SetOptional, SetRequired } from 'type-fest';
 import type { Diagram } from '../Diagram.js';
 import type { BaseDiagramConfig, MermaidConfig } from '../config.type.js';
 
@@ -91,17 +91,13 @@ export interface DiagramDefinition {
   ) => void;
 }
 
-export interface DetectorRecord {
-  detector: DiagramDetector;
-  loader?: DiagramLoader;
-}
-
 export interface ExternalDiagramDefinition {
   id: string;
   detector: DiagramDetector;
   loader: DiagramLoader;
 }
 
+export type DetectorRecord = SetOptional<Omit<ExternalDiagramDefinition, 'id'>, 'loader'>;
 export type DiagramDetector = (text: string, config?: MermaidConfig) => boolean;
 export type DiagramLoader = () => Promise<{ id: string; diagram: DiagramDefinition }>;
 

packages/mermaid/src/diagrams/architecture/architectureRenderer.ts

@@ -379,6 +379,15 @@ function layoutArchitecture(
           },
         },
       ],
+      layout: {
+        name: 'grid',
+        boundingBox: {
+          x1: 0,
+          x2: 100,
+          y1: 0,
+          y2: 100,
+        },
+      },
     });
     // Remove element after layout
     renderEl.remove();

packages/mermaid/src/diagrams/block/blockDB.ts

@@ -287,7 +287,7 @@ const setBlock = (block: Block) => {
   blockDatabase.set(block.id, block);
 };
 
-const getLogger = () => console;
+const getLogger = () => log;
 
 /**
  * Return all of the style classes

packages/mermaid/src/diagrams/git/gitGraph.spec.ts

@@ -1,4 +1,4 @@
-import { rejects } from 'assert';
+import { log } from '../../logger.js';
 import { db } from './gitGraphAst.js';
 import { parser } from './gitGraphParser.js';
 
@@ -1319,4 +1319,42 @@ describe('when parsing a gitGraph', function () {
       }
     });
   });
+  it('should log a warning when two commits have the same ID', async () => {
+    const str = `gitGraph
+     commit id:"initial commit"
+     commit id:"work on first release"
+     commit id:"design freeze from here"
+     branch v1-rc
+     checkout v1-rc
+     commit id:"bugfix 1"
+     commit id:"bigfix 2" tag:"v1.0.1"
+     branch FORK-v1.0-MDR
+     checkout FORK-v1.0-MDR
+     commit id:"working on MDR"
+     checkout v1-rc
+     commit id:"minor design changes for MDR" tag:"v1.0.2"
+     checkout FORK-v1.0-MDR
+     merge v1-rc
+     checkout main
+     commit id:"new feature for v1.1…"
+     checkout FORK-v1.0-MDR
+     commit id:"working on MDR"
+     commit id:"finishing MDR"
+     branch v1.0-MDR
+     checkout v1.0-MDR
+     commit id:"brush up release" tag:"v1.0.2-MDR"
+     checkout v1-rc
+     commit id:"bugfix without MDR"
+     checkout main
+     commit id:"work on v1.1"
+  `;
+
+    const logWarnSpy = vi.spyOn(log, 'warn').mockImplementation(() => undefined);
+
+    await parser.parse(str);
+
+    expect(logWarnSpy).toHaveBeenCalledWith('Commit ID working on MDR already exists');
+
+    logWarnSpy.mockRestore();
+  });
 });

packages/mermaid/src/diagrams/git/gitGraphAst.ts

@@ -125,6 +125,9 @@ export const commit = function (commitDB: CommitDB) {
   };
   state.records.head = newCommit;
   log.info('main branch', config.mainBranchName);
+  if (state.records.commits.has(newCommit.id)) {
+    log.warn(`Commit ID ${newCommit.id} already exists`);
+  }
   state.records.commits.set(newCommit.id, newCommit);
   state.records.branches.set(state.records.currBranch, newCommit.id);
   log.debug('in pushCommit ' + newCommit.id);

packages/mermaid/src/diagrams/packet/detector.ts

@@ -7,7 +7,7 @@ import type {
 const id = 'packet';
 
 const detector: DiagramDetector = (txt) => {
-  return /^\s*packet-beta/.test(txt);
+  return /^\s*packet(-beta)?/.test(txt);
 };
 
 const loader: DiagramLoader = async () => {

packages/mermaid/src/diagrams/packet/packet.spec.ts

@@ -15,8 +15,14 @@ describe('packet diagrams', () => {
     expect(getPacket()).toMatchInlineSnapshot('[]');
   });
 
+  it('should handle a packet definition', async () => {
+    const str = `packet`;
+    await expect(parser.parse(str)).resolves.not.toThrow();
+    expect(getPacket()).toMatchInlineSnapshot('[]');
+  });
+
   it('should handle diagram with data and title', async () => {
-    const str = `packet-beta
+    const str = `packet
     title Packet diagram
     accTitle: Packet accTitle
     accDescr: Packet accDescription
@@ -41,7 +47,7 @@ describe('packet diagrams', () => {
   });
 
   it('should handle single bits', async () => {
-    const str = `packet-beta
+    const str = `packet
     0-10: "test"
     11: "single"
     `;
@@ -67,7 +73,7 @@ describe('packet diagrams', () => {
   });
 
   it('should handle bit counts', async () => {
-    const str = `packet-beta
+    const str = `packet
     +8: "byte"
     +16: "word"
     `;
@@ -93,7 +99,7 @@ describe('packet diagrams', () => {
   });
 
   it('should handle bit counts with bit or bits', async () => {
-    const str = `packet-beta
+    const str = `packet
     +8: "byte"
     +16: "word"
     `;
@@ -119,7 +125,7 @@ describe('packet diagrams', () => {
   });
 
   it('should split into multiple rows', async () => {
-    const str = `packet-beta
+    const str = `packet
     0-10: "test"
     11-90: "multiple"
     `;
@@ -161,7 +167,7 @@ describe('packet diagrams', () => {
   });
 
   it('should split into multiple rows when cut at exact length', async () => {
-    const str = `packet-beta
+    const str = `packet
     0-16: "test"
     17-63: "multiple"
     `;
@@ -195,7 +201,7 @@ describe('packet diagrams', () => {
   });
 
   it('should throw error if numbers are not continuous', async () => {
-    const str = `packet-beta
+    const str = `packet
     0-16: "test"
     18-20: "error"
     `;
@@ -205,7 +211,7 @@ describe('packet diagrams', () => {
   });
 
   it('should throw error if numbers are not continuous with bit counts', async () => {
-    const str = `packet-beta
+    const str = `packet
     +16: "test"
     18-20: "error"
     `;
@@ -215,7 +221,7 @@ describe('packet diagrams', () => {
   });
 
   it('should throw error if numbers are not continuous for single packets', async () => {
-    const str = `packet-beta
+    const str = `packet
     0-16: "test"
     18: "error"
     `;
@@ -225,7 +231,7 @@ describe('packet diagrams', () => {
   });
 
   it('should throw error if numbers are not continuous for single packets with bit counts', async () => {
-    const str = `packet-beta
+    const str = `packet
     +16: "test"
     18: "error"
     `;
@@ -235,7 +241,7 @@ describe('packet diagrams', () => {
   });
 
   it('should throw error if numbers are not continuous for single packets - 2', async () => {
-    const str = `packet-beta
+    const str = `packet
     0-16: "test"
     17: "good"
     19: "error"
@@ -246,7 +252,7 @@ describe('packet diagrams', () => {
   });
 
   it('should throw error if end is less than start', async () => {
-    const str = `packet-beta
+    const str = `packet
     0-16: "test"
     25-20: "error"
     `;
@@ -256,7 +262,7 @@ describe('packet diagrams', () => {
   });
 
   it('should throw error if bit count is 0', async () => {
-    const str = `packet-beta
+    const str = `packet
     +0: "test"
     `;
     await expect(parser.parse(str)).rejects.toThrowErrorMatchingInlineSnapshot(

packages/mermaid/src/diagrams/sequence/svgDraw.js

@@ -524,7 +524,7 @@ export const drawBox = function (elem, box, conf) {
       box.name,
       g,
       box.x,
-      box.y + (box.textMaxHeight || 0) / 2,
+      box.y + conf.boxTextMargin + (box.textMaxHeight || 0) / 2,
       box.width,
       0,
       { class: 'text' },

packages/mermaid/src/diagrams/timeline/timelineRenderer.ts

@@ -28,8 +28,7 @@ interface TimelineTask {
 export const draw = function (text: string, id: string, version: string, diagObj: Diagram) {
   //1. Fetch the configuration
   const conf = getConfig();
-  // @ts-expect-error - wrong config?
-  const LEFT_MARGIN = conf.leftMargin ?? 50;
+  const LEFT_MARGIN = conf.timeline?.leftMargin ?? 50;
 
   log.debug('timeline', diagObj.db);
 

packages/mermaid/src/diagrams/treemap/db.ts

@@ -0,0 +1,112 @@
+import { getConfig as commonGetConfig } from '../../config.js';
+import DEFAULT_CONFIG from '../../defaultConfig.js';
+import type { DiagramStyleClassDef } from '../../diagram-api/types.js';
+import { isLabelStyle } from '../../rendering-util/rendering-elements/shapes/handDrawnShapeStyles.js';
+
+import { cleanAndMerge } from '../../utils.js';
+import { ImperativeState } from '../../utils/imperativeState.js';
+import {
+  clear as commonClear,
+  getAccDescription,
+  getAccTitle,
+  getDiagramTitle,
+  setAccDescription,
+  setAccTitle,
+  setDiagramTitle,
+} from '../common/commonDb.js';
+import type { TreemapDB, TreemapData, TreemapDiagramConfig, TreemapNode } from './types.js';
+
+const defaultTreemapData: TreemapData = {
+  nodes: [],
+  levels: new Map(),
+  outerNodes: [],
+  classes: new Map(),
+};
+
+const state = new ImperativeState<TreemapData>(() => structuredClone(defaultTreemapData));
+
+const getConfig = (): Required<TreemapDiagramConfig> => {
+  // Use type assertion with unknown as intermediate step
+  const defaultConfig = DEFAULT_CONFIG as unknown as { treemap: Required<TreemapDiagramConfig> };
+  const userConfig = commonGetConfig() as unknown as { treemap?: Partial<TreemapDiagramConfig> };
+
+  return cleanAndMerge({
+    ...defaultConfig.treemap,
+    ...(userConfig.treemap ?? {}),
+  }) as Required<TreemapDiagramConfig>;
+};
+
+const getNodes = (): TreemapNode[] => state.records.nodes;
+
+const addNode = (node: TreemapNode, level: number) => {
+  const data = state.records;
+  data.nodes.push(node);
+  data.levels.set(node, level);
+
+  if (level === 0) {
+    data.outerNodes.push(node);
+  }
+
+  // Set the root node if this is a level 0 node and we don't have a root yet
+  if (level === 0 && !data.root) {
+    data.root = node;
+  }
+};
+
+const getRoot = (): TreemapNode | undefined => ({ name: '', children: state.records.outerNodes });
+
+const addClass = (id: string, _style: string) => {
+  const classes = state.records.classes;
+  const styleClass = classes.get(id) ?? { id, styles: [], textStyles: [] };
+  classes.set(id, styleClass);
+
+  const styles = _style.replace(/\\,/g, '§§§').replace(/,/g, ';').replace(/§§§/g, ',').split(';');
+
+  if (styles) {
+    styles.forEach((s) => {
+      if (isLabelStyle(s)) {
+        if (styleClass?.textStyles) {
+          styleClass.textStyles.push(s);
+        } else {
+          styleClass.textStyles = [s];
+        }
+      }
+      if (styleClass?.styles) {
+        styleClass.styles.push(s);
+      } else {
+        styleClass.styles = [s];
+      }
+    });
+  }
+
+  classes.set(id, styleClass);
+};
+const getClasses = (): Map<string, DiagramStyleClassDef> => {
+  return state.records.classes;
+};
+
+const getStylesForClass = (classSelector: string): string[] => {
+  return state.records.classes.get(classSelector)?.styles ?? [];
+};
+
+const clear = () => {
+  commonClear();
+  state.reset();
+};
+
+export const db: TreemapDB = {
+  getNodes,
+  addNode,
+  getRoot,
+  getConfig,
+  clear,
+  setAccTitle,
+  getAccTitle,
+  setDiagramTitle,
+  getDiagramTitle,
+  getAccDescription,
+  setAccDescription,
+  addClass,
+  getClasses,
+  getStylesForClass,
+};

packages/mermaid/src/diagrams/treemap/detector.ts

@@ -0,0 +1,22 @@
+import type {
+  DiagramDetector,
+  DiagramLoader,
+  ExternalDiagramDefinition,
+} from '../../diagram-api/types.js';
+
+const id = 'treemap';
+
+const detector: DiagramDetector = (txt) => {
+  return /^\s*treemap/.test(txt);
+};
+
+const loader: DiagramLoader = async () => {
+  const { diagram } = await import('./diagram.js');
+  return { id, diagram };
+};
+
+export const treemap: ExternalDiagramDefinition = {
+  id,
+  detector,
+  loader,
+};

packages/mermaid/src/diagrams/treemap/diagram.ts

@@ -0,0 +1,12 @@
+import type { DiagramDefinition } from '../../diagram-api/types.js';
+import { db } from './db.js';
+import { parser } from './parser.js';
+import { renderer } from './renderer.js';
+import styles from './styles.js';
+
+export const diagram: DiagramDefinition = {
+  parser,
+  db,
+  renderer,
+  styles,
+};

packages/mermaid/src/diagrams/treemap/parser.ts

@@ -0,0 +1,100 @@
+import { parse } from '@mermaid-js/parser';
+import type { ParserDefinition } from '../../diagram-api/types.js';
+import { log } from '../../logger.js';
+import { populateCommonDb } from '../common/populateCommonDb.js';
+import { db } from './db.js';
+import type { TreemapNode, TreemapAst } from './types.js';
+import { buildHierarchy } from './utils.js';
+
+/**
+ * Populates the database with data from the Treemap AST
+ * @param ast - The Treemap AST
+ */
+const populate = (ast: TreemapAst) => {
+  // We need to bypass the type checking for populateCommonDb
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  populateCommonDb(ast as any, db);
+
+  const items: {
+    level: number;
+    name: string;
+    type: string;
+    value?: number;
+    classSelector?: string;
+    cssCompiledStyles?: string;
+  }[] = [];
+
+  // Extract classes and styles from the treemap
+  for (const row of ast.TreemapRows ?? []) {
+    if (row.$type === 'ClassDefStatement') {
+      db.addClass(row.className ?? '', row.styleText ?? '');
+    }
+  }
+
+  // Extract data from each row in the treemap
+  for (const row of ast.TreemapRows ?? []) {
+    const item = row.item;
+
+    if (!item) {
+      continue;
+    }
+
+    const level = row.indent ? parseInt(row.indent) : 0;
+    const name = getItemName(item);
+
+    // Get styles as a string if they exist
+    const styles = item.classSelector ? db.getStylesForClass(item.classSelector) : [];
+    const cssCompiledStyles = styles.length > 0 ? styles.join(';') : undefined;
+
+    const itemData = {
+      level,
+      name,
+      type: item.$type,
+      value: item.value,
+      classSelector: item.classSelector,
+      cssCompiledStyles,
+    };
+
+    items.push(itemData);
+  }
+
+  // Convert flat structure to hierarchical
+  const hierarchyNodes = buildHierarchy(items);
+
+  // Add all nodes to the database
+  const addNodesRecursively = (nodes: TreemapNode[], level: number) => {
+    for (const node of nodes) {
+      db.addNode(node, level);
+      if (node.children && node.children.length > 0) {
+        addNodesRecursively(node.children, level + 1);
+      }
+    }
+  };
+
+  addNodesRecursively(hierarchyNodes, 0);
+};
+
+/**
+ * Gets the name of a treemap item
+ * @param item - The treemap item
+ * @returns The name of the item
+ */
+const getItemName = (item: { name?: string | number }): string => {
+  return item.name ? String(item.name) : '';
+};
+
+export const parser: ParserDefinition = {
+  parse: async (text: string): Promise<void> => {
+    try {
+      // Use a generic parse that accepts any diagram type
+
+      const parseFunc = parse as (diagramType: string, text: string) => Promise<TreemapAst>;
+      const ast = await parseFunc('treemap', text);
+      log.debug('Treemap AST:', ast);
+      populate(ast);
+    } catch (error) {
+      log.error('Error parsing treemap:', error);
+      throw error;
+    }
+  },
+};

packages/mermaid/src/diagrams/treemap/renderer.ts

@@ -0,0 +1,526 @@
+import type { Diagram } from '../../Diagram.js';
+import type {
+  DiagramRenderer,
+  DiagramStyleClassDef,
+  DrawDefinition,
+} from '../../diagram-api/types.js';
+import { selectSvgElement } from '../../rendering-util/selectSvgElement.js';
+import { setupViewPortForSVG } from '../../rendering-util/setupViewPortForSVG.js';
+import { configureSvgSize } from '../../setupGraphViewbox.js';
+import type { TreemapDB, TreemapNode } from './types.js';
+import { scaleOrdinal, treemap, hierarchy, format, select } from 'd3';
+import { styles2String } from '../../rendering-util/rendering-elements/shapes/handDrawnShapeStyles.js';
+import { getConfig } from '../../config.js';
+import { log } from '../../logger.js';
+import type { Node } from '../../rendering-util/types.js';
+
+const DEFAULT_INNER_PADDING = 10; // Default for inner padding between cells/sections
+const SECTION_INNER_PADDING = 10; // Default for inner padding between cells/sections
+const SECTION_HEADER_HEIGHT = 25;
+
+/**
+ * Draws the treemap diagram
+ */
+const draw: DrawDefinition = (_text, id, _version, diagram: Diagram) => {
+  const treemapDb = diagram.db as TreemapDB;
+  const config = treemapDb.getConfig();
+  const treemapInnerPadding = config.padding ?? DEFAULT_INNER_PADDING;
+  const title = treemapDb.getDiagramTitle();
+  const root = treemapDb.getRoot();
+  const { themeVariables } = getConfig();
+  if (!root) {
+    return;
+  }
+
+  // Define dimensions
+  const titleHeight = title ? 30 : 0;
+
+  const svg = selectSvgElement(id);
+  // Use config dimensions or defaults
+  const width = config.nodeWidth ? config.nodeWidth * SECTION_INNER_PADDING : 960;
+  const height = config.nodeHeight ? config.nodeHeight * SECTION_INNER_PADDING : 500;
+
+  const svgWidth = width;
+  const svgHeight = height + titleHeight;
+
+  // Set the SVG size
+  svg.attr('viewBox', `0 0 ${svgWidth} ${svgHeight}`);
+  configureSvgSize(svg, svgHeight, svgWidth, config.useMaxWidth);
+
+  // Format for displaying values
+  let valueFormat;
+  try {
+    // Handle special format patterns
+    const formatStr = config.valueFormat || ',';
+
+    // Handle special cases that aren't directly supported by D3 format
+    if (formatStr === '$0,0') {
+      // Currency with thousands separator
+      valueFormat = (value: number) => '$' + format(',')(value);
+    } else if (formatStr.startsWith('$') && formatStr.includes(',')) {
+      // Other dollar formats with commas
+      const precision = /\.\d+/.exec(formatStr);
+      const precisionStr = precision ? precision[0] : '';
+      valueFormat = (value: number) => '$' + format(',' + precisionStr)(value);
+    } else if (formatStr.startsWith('$')) {
+      // Simple dollar sign prefix
+      const restOfFormat = formatStr.substring(1);
+      valueFormat = (value: number) => '$' + format(restOfFormat || '')(value);
+    } else {
+      // Standard D3 format
+      valueFormat = format(formatStr);
+    }
+  } catch (error) {
+    log.error('Error creating format function:', error);
+    // Fallback to default format
+    valueFormat = format(',');
+  }
+
+  // Create color scale
+  const colorScale = scaleOrdinal<string>().range([
+    'transparent',
+    themeVariables.cScale0,
+    themeVariables.cScale1,
+    themeVariables.cScale2,
+    themeVariables.cScale3,
+    themeVariables.cScale4,
+    themeVariables.cScale5,
+    themeVariables.cScale6,
+    themeVariables.cScale7,
+    themeVariables.cScale8,
+    themeVariables.cScale9,
+    themeVariables.cScale10,
+    themeVariables.cScale11,
+  ]);
+  const colorScalePeer = scaleOrdinal<string>().range([
+    'transparent',
+    themeVariables.cScalePeer0,
+    themeVariables.cScalePeer1,
+    themeVariables.cScalePeer2,
+    themeVariables.cScalePeer3,
+    themeVariables.cScalePeer4,
+    themeVariables.cScalePeer5,
+    themeVariables.cScalePeer6,
+    themeVariables.cScalePeer7,
+    themeVariables.cScalePeer8,
+    themeVariables.cScalePeer9,
+    themeVariables.cScalePeer10,
+    themeVariables.cScalePeer11,
+  ]);
+  const colorScaleLabel = scaleOrdinal<string>().range([
+    themeVariables.cScaleLabel0,
+    themeVariables.cScaleLabel1,
+    themeVariables.cScaleLabel2,
+    themeVariables.cScaleLabel3,
+    themeVariables.cScaleLabel4,
+    themeVariables.cScaleLabel5,
+    themeVariables.cScaleLabel6,
+    themeVariables.cScaleLabel7,
+    themeVariables.cScaleLabel8,
+    themeVariables.cScaleLabel9,
+    themeVariables.cScaleLabel10,
+    themeVariables.cScaleLabel11,
+  ]);
+
+  // Draw the title if it exists
+  if (title) {
+    svg
+      .append('text')
+      .attr('x', svgWidth / 2)
+      .attr('y', titleHeight / 2)
+      .attr('class', 'treemapTitle')
+      .attr('text-anchor', 'middle')
+      .attr('dominant-baseline', 'middle')
+      .text(title);
+  }
+
+  // Create a main container for the treemap, translated below the title
+  const g = svg
+    .append('g')
+    .attr('transform', `translate(0, ${titleHeight})`)
+    .attr('class', 'treemapContainer');
+
+  // Create the hierarchical structure
+  const hierarchyRoot = hierarchy<TreemapNode>(root)
+    .sum((d) => d.value ?? 0)
+    .sort((a, b) => (b.value ?? 0) - (a.value ?? 0));
+
+  // Create treemap layout
+  const treemapLayout = treemap<TreemapNode>()
+    .size([width, height])
+    .paddingTop((d) =>
+      d.children && d.children.length > 0 ? SECTION_HEADER_HEIGHT + SECTION_INNER_PADDING : 0
+    )
+    .paddingInner(treemapInnerPadding)
+    .paddingLeft((d) => (d.children && d.children.length > 0 ? SECTION_INNER_PADDING : 0))
+    .paddingRight((d) => (d.children && d.children.length > 0 ? SECTION_INNER_PADDING : 0))
+    .paddingBottom((d) => (d.children && d.children.length > 0 ? SECTION_INNER_PADDING : 0))
+    .round(true);
+
+  // Apply the treemap layout to the hierarchy
+  const treemapData = treemapLayout(hierarchyRoot);
+
+  // Draw section nodes (branches - nodes with children)
+  const branchNodes = treemapData.descendants().filter((d) => d.children && d.children.length > 0);
+  const sections = g
+    .selectAll('.treemapSection')
+    .data(branchNodes)
+    .enter()
+    .append('g')
+    .attr('class', 'treemapSection')
+    .attr('transform', (d) => `translate(${d.x0},${d.y0})`);
+
+  // Add section header background
+  sections
+    .append('rect')
+    .attr('width', (d) => d.x1 - d.x0)
+    .attr('height', SECTION_HEADER_HEIGHT)
+    .attr('class', 'treemapSectionHeader')
+    .attr('fill', 'none')
+    .attr('fill-opacity', 0.6)
+    .attr('stroke-width', 0.6)
+    .attr('style', (d) => {
+      // Hide the label for the root section
+      if (d.depth === 0) {
+        return 'display: none;';
+      }
+      return '';
+    });
+
+  // Add clip paths for section headers to prevent text overflow
+  sections
+    .append('clipPath')
+    .attr('id', (_d, i) => `clip-section-${id}-${i}`)
+    .append('rect')
+    .attr('width', (d) => Math.max(0, d.x1 - d.x0 - 12)) // 6px padding on each side
+    .attr('height', SECTION_HEADER_HEIGHT);
+
+  sections
+    .append('rect')
+    .attr('width', (d) => d.x1 - d.x0)
+    .attr('height', (d) => d.y1 - d.y0)
+    .attr('class', (_d, i) => {
+      return `treemapSection section${i}`;
+    })
+    .attr('fill', (d) => colorScale(d.data.name))
+    .attr('fill-opacity', 0.6)
+    .attr('stroke', (d) => colorScalePeer(d.data.name))
+    .attr('stroke-width', 2.0)
+    .attr('stroke-opacity', 0.4)
+    .attr('style', (d) => {
+      // Hide the label for the root section
+      if (d.depth === 0) {
+        return 'display: none;';
+      }
+      const styles = styles2String({ cssCompiledStyles: d.data.cssCompiledStyles } as Node);
+      return styles.nodeStyles + ';' + styles.borderStyles.join(';');
+    });
+  // Add section labels
+  sections
+    .append('text')
+    .attr('class', 'treemapSectionLabel')
+    .attr('x', 6) // Keep original left padding
+    .attr('y', SECTION_HEADER_HEIGHT / 2)
+    .attr('dominant-baseline', 'middle')
+    .text((d) => (d.depth === 0 ? '' : d.data.name)) // Skip label for root section
+    .attr('font-weight', 'bold')
+    .attr('style', (d) => {
+      // Hide the label for the root section
+      if (d.depth === 0) {
+        return 'display: none;';
+      }
+      const labelStyles =
+        'dominant-baseline: middle; font-size: 12px; fill:' +
+        colorScaleLabel(d.data.name) +
+        '; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;';
+      const styles = styles2String({ cssCompiledStyles: d.data.cssCompiledStyles } as Node);
+      return labelStyles + styles.labelStyles.replace('color:', 'fill:');
+    })
+    .each(function (d) {
+      // Skip processing for root section
+      if (d.depth === 0) {
+        return;
+      }
+      const self = select(this);
+      const originalText = d.data.name;
+      self.text(originalText);
+      const totalHeaderWidth = d.x1 - d.x0;
+      const labelXPosition = 6;
+      let spaceForTextContent;
+      if (config.showValues !== false && d.value) {
+        const valueEndsAtXRelative = totalHeaderWidth - 10;
+        const estimatedValueTextActualWidth = 30;
+        const gapBetweenLabelAndValue = 10;
+        const labelMustEndBeforeX =
+          valueEndsAtXRelative - estimatedValueTextActualWidth - gapBetweenLabelAndValue;
+        spaceForTextContent = labelMustEndBeforeX - labelXPosition;
+      } else {
+        const labelOwnRightPadding = 6;
+        spaceForTextContent = totalHeaderWidth - labelXPosition - labelOwnRightPadding;
+      }
+      const minimumWidthToDisplay = 15;
+      const actualAvailableWidth = Math.max(minimumWidthToDisplay, spaceForTextContent);
+      const textNode = self.node()!;
+      const currentTextContentLength = textNode.getComputedTextLength();
+      if (currentTextContentLength > actualAvailableWidth) {
+        const ellipsis = '...';
+        let currentTruncatedText = originalText;
+        while (currentTruncatedText.length > 0) {
+          currentTruncatedText = originalText.substring(0, currentTruncatedText.length - 1);
+          if (currentTruncatedText.length === 0) {
+            self.text(ellipsis);
+            if (textNode.getComputedTextLength() > actualAvailableWidth) {
+              self.text('');
+            }
+            break;
+          }
+          self.text(currentTruncatedText + ellipsis);
+          if (textNode.getComputedTextLength() <= actualAvailableWidth) {
+            break;
+          }
+        }
+      }
+    });
+
+  // Add section values if enabled
+  if (config.showValues !== false) {
+    sections
+      .append('text')
+      .attr('class', 'treemapSectionValue')
+      .attr('x', (d) => d.x1 - d.x0 - 10)
+      .attr('y', SECTION_HEADER_HEIGHT / 2)
+      .attr('text-anchor', 'end')
+      .attr('dominant-baseline', 'middle')
+      .text((d) => (d.value ? valueFormat(d.value) : ''))
+      .attr('font-style', 'italic')
+      .attr('style', (d) => {
+        // Hide the value for the root section
+        if (d.depth === 0) {
+          return 'display: none;';
+        }
+        const labelStyles =
+          'text-anchor: end; dominant-baseline: middle; font-size: 10px; fill:' +
+          colorScaleLabel(d.data.name) +
+          '; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;';
+        const styles = styles2String({ cssCompiledStyles: d.data.cssCompiledStyles } as Node);
+        return labelStyles + styles.labelStyles.replace('color:', 'fill:');
+      });
+  }
+
+  // Draw the leaf nodes
+  const leafNodes = treemapData.leaves();
+  const cell = g
+    .selectAll('.treemapLeafGroup')
+    .data(leafNodes)
+    .enter()
+    .append('g')
+    .attr('class', (d, i) => {
+      return `treemapNode treemapLeafGroup leaf${i}${d.data.classSelector ? ` ${d.data.classSelector}` : ''}x`;
+    })
+    .attr('transform', (d) => `translate(${d.x0},${d.y0})`);
+
+  // Add rectangle for each leaf node
+  cell
+    .append('rect')
+    .attr('width', (d) => d.x1 - d.x0)
+    .attr('height', (d) => d.y1 - d.y0)
+    .attr('class', 'treemapLeaf')
+    .attr('fill', (d) => {
+      // Leaves inherit color from their immediate parent section's name.
+      // If a leaf is the root itself (no parent), it uses its own name.
+      return d.parent ? colorScale(d.parent.data.name) : colorScale(d.data.name);
+    })
+    .attr('style', (d) => {
+      const styles = styles2String({ cssCompiledStyles: d.data.cssCompiledStyles } as Node);
+      return styles.nodeStyles;
+    })
+    .attr('fill-opacity', 0.3)
+    .attr('stroke', (d) => {
+      // Leaves inherit color from their immediate parent section's name.
+      // If a leaf is the root itself (no parent), it uses its own name.
+      return d.parent ? colorScale(d.parent.data.name) : colorScale(d.data.name);
+    })
+    .attr('stroke-width', 3.0);
+
+  // Add clip paths to prevent text from extending outside nodes
+  cell
+    .append('clipPath')
+    .attr('id', (_d, i) => `clip-${id}-${i}`)
+    .append('rect')
+    .attr('width', (d) => Math.max(0, d.x1 - d.x0 - 4))
+    .attr('height', (d) => Math.max(0, d.y1 - d.y0 - 4));
+
+  // Add node labels with clipping
+  const leafLabels = cell
+    .append('text')
+    .attr('class', 'treemapLabel')
+    .attr('x', (d) => (d.x1 - d.x0) / 2)
+    .attr('y', (d) => (d.y1 - d.y0) / 2)
+    // .style('fill', (d) => colorScaleLabel(d.data.name))
+    .attr('style', (d) => {
+      const labelStyles =
+        'text-anchor: middle; dominant-baseline: middle; font-size: 38px;fill:' +
+        colorScaleLabel(d.data.name) +
+        ';';
+      const styles = styles2String({ cssCompiledStyles: d.data.cssCompiledStyles } as Node);
+      return labelStyles + styles.labelStyles.replace('color:', 'fill:');
+    })
+    .attr('clip-path', (_d, i) => `url(#clip-${id}-${i})`)
+    .text((d) => d.data.name);
+
+  leafLabels.each(function (d) {
+    const self = select(this);
+    const nodeWidth = d.x1 - d.x0;
+    const nodeHeight = d.y1 - d.y0;
+    const textNode = self.node()!;
+
+    const padding = 4;
+    const availableWidth = nodeWidth - 2 * padding;
+    const availableHeight = nodeHeight - 2 * padding;
+
+    if (availableWidth < 10 || availableHeight < 10) {
+      self.style('display', 'none');
+      return;
+    }
+
+    let currentLabelFontSize = parseInt(self.style('font-size'), 10);
+    const minLabelFontSize = 8;
+    const originalValueRelFontSize = 28; // Original font size of value, for max cap
+    const valueScaleFactor = 0.6; // Value font size as a factor of label font size
+    const minValueFontSize = 6;
+    const spacingBetweenLabelAndValue = 2;
+
+    // 1. Adjust label font size to fit width
+    while (
+      textNode.getComputedTextLength() > availableWidth &&
+      currentLabelFontSize > minLabelFontSize
+    ) {
+      currentLabelFontSize--;
+      self.style('font-size', `${currentLabelFontSize}px`);
+    }
+
+    // 2. Adjust both label and prospective value font size to fit combined height
+    let prospectiveValueFontSize = Math.max(
+      minValueFontSize,
+      Math.min(originalValueRelFontSize, Math.round(currentLabelFontSize * valueScaleFactor))
+    );
+    let combinedHeight =
+      currentLabelFontSize + spacingBetweenLabelAndValue + prospectiveValueFontSize;
+
+    while (combinedHeight > availableHeight && currentLabelFontSize > minLabelFontSize) {
+      currentLabelFontSize--;
+      prospectiveValueFontSize = Math.max(
+        minValueFontSize,
+        Math.min(originalValueRelFontSize, Math.round(currentLabelFontSize * valueScaleFactor))
+      );
+      if (
+        prospectiveValueFontSize < minValueFontSize &&
+        currentLabelFontSize === minLabelFontSize
+      ) {
+        break;
+      } // Avoid shrinking label if value is already at min
+      self.style('font-size', `${currentLabelFontSize}px`);
+      combinedHeight =
+        currentLabelFontSize + spacingBetweenLabelAndValue + prospectiveValueFontSize;
+      if (prospectiveValueFontSize <= minValueFontSize && combinedHeight > availableHeight) {
+        // If value is at min and still doesn't fit, label might need to shrink more alone
+        // This might lead to label being too small for its own text, checked next
+      }
+    }
+
+    // Update label font size based on height adjustment
+    self.style('font-size', `${currentLabelFontSize}px`);
+
+    // 3. Final visibility check for the label
+    if (
+      textNode.getComputedTextLength() > availableWidth ||
+      currentLabelFontSize < minLabelFontSize ||
+      availableHeight < currentLabelFontSize
+    ) {
+      self.style('display', 'none');
+      // If label is hidden, value will be hidden by its own .each() loop
+    }
+  });
+
+  // Add node values with clipping
+  if (config.showValues !== false) {
+    const leafValues = cell
+      .append('text')
+      .attr('class', 'treemapValue')
+      .attr('x', (d) => (d.x1 - d.x0) / 2)
+      .attr('y', function (d) {
+        // Y position calculated dynamically in leafValues.each based on final label metrics
+        return (d.y1 - d.y0) / 2; // Placeholder, will be overwritten
+      })
+      .attr('style', (d) => {
+        const labelStyles =
+          'text-anchor: middle; dominant-baseline: hanging; font-size: 28px;fill:' +
+          colorScaleLabel(d.data.name) +
+          ';';
+        const styles = styles2String({ cssCompiledStyles: d.data.cssCompiledStyles } as Node);
+        return labelStyles + styles.labelStyles.replace('color:', 'fill:');
+      })
+
+      .attr('clip-path', (_d, i) => `url(#clip-${id}-${i})`)
+      .text((d) => (d.value ? valueFormat(d.value) : ''));
+
+    leafValues.each(function (d) {
+      const valueTextElement = select(this);
+      const parentCellNode = this.parentNode as SVGGElement | null;
+
+      if (!parentCellNode) {
+        valueTextElement.style('display', 'none');
+        return;
+      }
+
+      const labelElement = select(parentCellNode).select<SVGTextElement>('.treemapLabel');
+
+      if (labelElement.empty() || labelElement.style('display') === 'none') {
+        valueTextElement.style('display', 'none');
+        return;
+      }
+
+      const finalLabelFontSize = parseFloat(labelElement.style('font-size'));
+      const originalValueFontSize = 28; // From initial style setting
+      const valueScaleFactor = 0.6;
+      const minValueFontSize = 6;
+      const spacingBetweenLabelAndValue = 2;
+
+      const actualValueFontSize = Math.max(
+        minValueFontSize,
+        Math.min(originalValueFontSize, Math.round(finalLabelFontSize * valueScaleFactor))
+      );
+      valueTextElement.style('font-size', `${actualValueFontSize}px`);
+
+      const labelCenterY = (d.y1 - d.y0) / 2;
+      const valueTopActualY = labelCenterY + finalLabelFontSize / 2 + spacingBetweenLabelAndValue;
+      valueTextElement.attr('y', valueTopActualY);
+
+      const nodeWidth = d.x1 - d.x0;
+      const nodeTotalHeight = d.y1 - d.y0;
+      const cellBottomPadding = 4;
+      const maxValueBottomY = nodeTotalHeight - cellBottomPadding;
+      const availableWidthForValue = nodeWidth - 2 * 4; // padding for value text
+
+      if (
+        valueTextElement.node()!.getComputedTextLength() > availableWidthForValue ||
+        valueTopActualY + actualValueFontSize > maxValueBottomY ||
+        actualValueFontSize < minValueFontSize
+      ) {
+        valueTextElement.style('display', 'none');
+      } else {
+        valueTextElement.style('display', null);
+      }
+    });
+  }
+  const diagramPadding = config.diagramPadding ?? 8;
+  setupViewPortForSVG(svg, diagramPadding, 'flowchart', config?.useMaxWidth || false);
+};
+
+const getClasses = function (
+  _text: string,
+  diagramObj: Pick<Diagram, 'db'>
+): Map<string, DiagramStyleClassDef> {
+  return (diagramObj.db as TreemapDB).getClasses();
+};
+export const renderer: DiagramRenderer = { draw, getClasses };

packages/mermaid/src/diagrams/treemap/styles.ts

@@ -0,0 +1,51 @@
+import type { DiagramStylesProvider } from '../../diagram-api/types.js';
+import { cleanAndMerge } from '../../utils.js';
+import type { TreemapStyleOptions } from './types.js';
+
+const defaultTreemapStyleOptions: TreemapStyleOptions = {
+  sectionStrokeColor: 'black',
+  sectionStrokeWidth: '1',
+  sectionFillColor: '#efefef',
+  leafStrokeColor: 'black',
+  leafStrokeWidth: '1',
+  leafFillColor: '#efefef',
+  labelColor: 'black',
+  labelFontSize: '12px',
+  valueFontSize: '10px',
+  valueColor: 'black',
+  titleColor: 'black',
+  titleFontSize: '14px',
+};
+
+export const getStyles: DiagramStylesProvider = ({
+  treemap,
+}: { treemap?: TreemapStyleOptions } = {}) => {
+  const options = cleanAndMerge(defaultTreemapStyleOptions, treemap);
+
+  return `
+  .treemapNode.section {
+    stroke: ${options.sectionStrokeColor};
+    stroke-width: ${options.sectionStrokeWidth};
+    fill: ${options.sectionFillColor};
+  }
+  .treemapNode.leaf {
+    stroke: ${options.leafStrokeColor};
+    stroke-width: ${options.leafStrokeWidth};
+    fill: ${options.leafFillColor};
+  }
+  .treemapLabel {
+    fill: ${options.labelColor};
+    font-size: ${options.labelFontSize};
+  }
+  .treemapValue {
+    fill: ${options.valueColor};
+    font-size: ${options.valueFontSize};
+  }
+  .treemapTitle {
+    fill: ${options.titleColor};
+    font-size: ${options.titleFontSize};
+  }
+  `;
+};
+
+export default getStyles;

packages/mermaid/src/diagrams/treemap/types.ts

@@ -0,0 +1,80 @@
+import type { DiagramDBBase, DiagramStyleClassDef } from '../../diagram-api/types.js';
+import type { BaseDiagramConfig } from '../../config.type.js';
+
+export interface TreemapNode {
+  name: string;
+  children?: TreemapNode[];
+  value?: number;
+  parent?: TreemapNode;
+  classSelector?: string;
+  cssCompiledStyles?: string[];
+}
+
+export interface TreemapDB extends DiagramDBBase<TreemapDiagramConfig> {
+  getNodes: () => TreemapNode[];
+  addNode: (node: TreemapNode, level: number) => void;
+  getRoot: () => TreemapNode | undefined;
+  getClasses: () => Map<string, DiagramStyleClassDef>;
+  addClass: (className: string, style: string) => void;
+  getStylesForClass: (classSelector: string) => string[];
+}
+
+export interface TreemapStyleOptions {
+  sectionStrokeColor?: string;
+  sectionStrokeWidth?: string;
+  sectionFillColor?: string;
+  leafStrokeColor?: string;
+  leafStrokeWidth?: string;
+  leafFillColor?: string;
+  labelColor?: string;
+  labelFontSize?: string;
+  valueFontSize?: string;
+  valueColor?: string;
+  titleColor?: string;
+  titleFontSize?: string;
+}
+
+export interface TreemapData {
+  nodes: TreemapNode[];
+  levels: Map<TreemapNode, number>;
+  root?: TreemapNode;
+  outerNodes: TreemapNode[];
+  classes: Map<string, DiagramStyleClassDef>;
+}
+
+export interface TreemapItem {
+  $type: string;
+  name: string;
+  value?: number;
+  classSelector?: string;
+}
+
+export interface TreemapRow {
+  $type: string;
+  indent?: string;
+  item?: TreemapItem;
+  className?: string;
+  styleText?: string;
+}
+
+export interface TreemapAst {
+  TreemapRows?: TreemapRow[];
+  title?: string;
+  description?: string;
+  accDescription?: string;
+  accTitle?: string;
+  diagramTitle?: string;
+}
+
+// Define the TreemapDiagramConfig interface
+export interface TreemapDiagramConfig extends BaseDiagramConfig {
+  padding?: number;
+  diagramPadding?: number;
+  showValues?: boolean;
+  nodeWidth?: number;
+  nodeHeight?: number;
+  borderWidth?: number;
+  valueFontSize?: number;
+  labelFontSize?: number;
+  valueFormat?: string;
+}

packages/mermaid/src/diagrams/treemap/utils.test.ts

@@ -0,0 +1,100 @@
+import { describe, it, expect } from 'vitest';
+import { buildHierarchy } from './utils.js';
+import type { TreemapNode } from './types.js';
+
+describe('treemap utilities', () => {
+  describe('buildHierarchy', () => {
+    it('should convert a flat array into a hierarchical structure', () => {
+      // Input flat structure
+      const flatItems = [
+        { level: 0, name: 'Root', type: 'Section' },
+        { level: 4, name: 'Branch 1', type: 'Section' },
+        { level: 8, name: 'Leaf 1.1', type: 'Leaf', value: 10 },
+        { level: 8, name: 'Leaf 1.2', type: 'Leaf', value: 15 },
+        { level: 4, name: 'Branch 2', type: 'Section' },
+        { level: 8, name: 'Leaf 2.1', type: 'Leaf', value: 20 },
+        { level: 8, name: 'Leaf 2.2', type: 'Leaf', value: 25 },
+        { level: 8, name: 'Leaf 2.3', type: 'Leaf', value: 30 },
+      ];
+
+      // Expected hierarchical structure
+      const expectedHierarchy: TreemapNode[] = [
+        {
+          name: 'Root',
+          children: [
+            {
+              name: 'Branch 1',
+              children: [
+                { name: 'Leaf 1.1', value: 10 },
+                { name: 'Leaf 1.2', value: 15 },
+              ],
+            },
+            {
+              name: 'Branch 2',
+              children: [
+                { name: 'Leaf 2.1', value: 20 },
+                { name: 'Leaf 2.2', value: 25 },
+                { name: 'Leaf 2.3', value: 30 },
+              ],
+            },
+          ],
+        },
+      ];
+
+      const result = buildHierarchy(flatItems);
+      expect(result).toEqual(expectedHierarchy);
+    });
+
+    it('should handle empty input', () => {
+      expect(buildHierarchy([])).toEqual([]);
+    });
+
+    it('should handle only root nodes', () => {
+      const flatItems = [
+        { level: 0, name: 'Root 1', type: 'Section' },
+        { level: 0, name: 'Root 2', type: 'Section' },
+      ];
+
+      const expected = [
+        { name: 'Root 1', children: [] },
+        { name: 'Root 2', children: [] },
+      ];
+
+      expect(buildHierarchy(flatItems)).toEqual(expected);
+    });
+
+    it('should handle complex nesting levels', () => {
+      const flatItems = [
+        { level: 0, name: 'Root', type: 'Section' },
+        { level: 2, name: 'Level 1', type: 'Section' },
+        { level: 4, name: 'Level 2', type: 'Section' },
+        { level: 6, name: 'Leaf 1', type: 'Leaf', value: 10 },
+        { level: 4, name: 'Level 2 again', type: 'Section' },
+        { level: 6, name: 'Leaf 2', type: 'Leaf', value: 20 },
+      ];
+
+      const expected = [
+        {
+          name: 'Root',
+          children: [
+            {
+              name: 'Level 1',
+              children: [
+                {
+                  name: 'Level 2',
+                  children: [{ name: 'Leaf 1', value: 10 }],
+                },
+                {
+                  name: 'Level 2 again',
+                  children: [{ name: 'Leaf 2', value: 20 }],
+                },
+              ],
+            },
+          ],
+        },
+      ];
+
+      expect(buildHierarchy(flatItems)).toEqual(expected);
+    });
+  });
+});

packages/mermaid/src/diagrams/treemap/utils.ts

@@ -0,0 +1,64 @@
+import type { TreemapNode } from './types.js';
+
+/**
+ * Converts a flat array of treemap items into a hierarchical structure
+ * @param items - Array of flat treemap items with level, name, type, and optional value
+ * @returns A hierarchical tree structure
+ */
+export function buildHierarchy(
+  items: {
+    level: number;
+    name: string;
+    type: string;
+    value?: number;
+    classSelector?: string;
+    cssCompiledStyles?: string;
+  }[]
+): TreemapNode[] {
+  if (!items.length) {
+    return [];
+  }
+
+  const root: TreemapNode[] = [];
+  const stack: { node: TreemapNode; level: number }[] = [];
+
+  items.forEach((item) => {
+    const node: TreemapNode = {
+      name: item.name,
+      children: item.type === 'Leaf' ? undefined : [],
+    };
+    node.classSelector = item?.classSelector;
+    if (item?.cssCompiledStyles) {
+      node.cssCompiledStyles = [item.cssCompiledStyles];
+    }
+
+    if (item.type === 'Leaf' && item.value !== undefined) {
+      node.value = item.value;
+    }
+
+    // Find the right parent for this node
+    while (stack.length > 0 && stack[stack.length - 1].level >= item.level) {
+      stack.pop();
+    }
+
+    if (stack.length === 0) {
+      // This is a root node
+      root.push(node);
+    } else {
+      // Add as child to the parent
+      const parent = stack[stack.length - 1].node;
+      if (parent.children) {
+        parent.children.push(node);
+      } else {
+        parent.children = [node];
+      }
+    }
+
+    // Only add to stack if it can have children
+    if (item.type !== 'Leaf') {
+      stack.push({ node, level: item.level });
+    }
+  });
+
+  return root;
+}

packages/mermaid/src/docs/.vitepress/config.ts

@@ -141,7 +141,6 @@ function sidebarAll() {
       ],
     },
     ...sidebarSyntax(),
-    ...sidebarAlgorithms(),
     ...sidebarEcosystem(),
     ...sidebarConfig(),
     ...sidebarCommunity(),
@@ -180,6 +179,7 @@ function sidebarSyntax() {
         { text: 'Kanban 🔥', link: '/syntax/kanban' },
         { text: 'Architecture 🔥', link: '/syntax/architecture' },
         { text: 'Radar 🔥', link: '/syntax/radar' },
+        { text: 'Treemap 🔥', link: '/syntax/treemap' },
         { text: 'Other Examples', link: '/syntax/examples' },
       ],
     },
@@ -223,27 +223,6 @@ function sidebarEcosystem() {
   ];
 }
 
-function sidebarAlgorithms() {
-  return [
-    {
-      text: '🧠 Diagram Algorithms',
-      collapsed: false,
-      items: [
-        { text: 'Introduction', link: '/layouts/introduction' },
-        { text: 'Layout Algorithm Development', link: '/layouts/development' },
-        {
-          text: 'IPSep-Cola',
-          collapsed: false,
-          items: [
-            { text: 'Overview', link: '/layouts/ipsepcola/overview' },
-            { text: 'Implementation', link: '/layouts/ipsepcola/implementation' },
-          ],
-        },
-      ],
-    },
-  ];
-}
-
 function sidebarCommunity() {
   return [
     {

packages/mermaid/src/docs/community/contributing.md

@@ -302,7 +302,7 @@ If you are adding a feature, you will definitely need to add tests. Depending on
 
 Unit tests are tests that test a single function or module. They are the easiest to write and the fastest to run.
 
-Unit tests are mandatory for all code except the renderers. (The renderers are tested with integration tests.)
+Unit tests are mandatory for all code except the layout tests. (The layouts are tested with integration tests.)
 
 We use [Vitest](https://vitest.dev) to run unit tests.
 
@@ -328,6 +328,30 @@ When using Docker prepend your command with `./run`:
 ./run pnpm test
 ```
 
+##### Testing the DOM
+
+One can use `jsdomIt` to test any part of Mermaid that interacts with the DOM, as long as it is not related to the layout.
+
+The function `jsdomIt` ([developed in utils.ts](../../tests/util.ts)) overrides `it` from `vitest`, and creates a pseudo-browser environment that works almost like the real deal for the duration of the test. It uses JSDOM to create a DOM, and adds objects `window` and `document` to `global` to mock the browser environment.
+
+> [!NOTE]
+> The layout cannot work in `jsdomIt` tests because JSDOM has no rendering engine, hence the pseudo-browser environment.
+
+Example :
+
+```typescript
+import { ensureNodeFromSelector, jsdomIt } from './tests/util.js';
+
+jsdomIt('should add element "thing" in the SVG', ({ svg }) => {
+  // Code in this block runs in a pseudo-browser environment
+  addThing(svg); // The svg item is the D3 selection of the SVG node
+  const svgNode = ensureNodeFromSelector('svg'); // Retrieve the DOM node using the DOM API
+  expect(svgNode.querySelector('thing')).not.toBeNull(); // Test the structure of the SVG
+});
+```
+
+They can be used to test any method that interacts with the DOM, including for testing renderers. For renderers, additional integration testing is necessary to test the layout though.
+
 #### Integration / End-to-End (E2E) Tests
 
 These test the rendering and visual appearance of the diagrams.

packages/mermaid/src/docs/community/new-diagram.md

@@ -106,3 +106,13 @@ const themes = {
 ```
 
 The actual options and values for the colors are defined in **src/theme/theme-[xyz].js**. If you provide the options your diagram needs in the existing theme files then the theming will work smoothly without hiccups.
+
+## Examples
+
+The `@mermaid-js/examples` package contains a collection of examples that are used by tools like mermaid.live to help users get started with the new diagram.
+
+You can duplicate an existing diagram example file, eg: `packages/examples/src/examples/flowchart.ts`, and modify it with details specific to your diagram.
+
+Then you can import the example in the `packages/examples/src/index.ts` file and add it to the `examples` array.
+
+Each diagram should have at least one example, and that should be marked as default. It is good to add more examples to showcase different features of the diagram.