From 637680d4d9e39b4f8cb6f05b4cb261e8f5693ac3 Mon Sep 17 00:00:00 2001
From: Syn3ugar <1029359941@qq.com>
Date: Fri, 4 Jul 2025 11:44:32 +0800
Subject: [PATCH] fix(timeline): load leftMargin from config

The `timeline.leftMargin` value in the docs/schema was not being
correctly loaded for timeline diagrams.
---
 .changeset/wild-areas-lick.md                              | 7 +++++++
 packages/mermaid/src/diagrams/timeline/timelineRenderer.ts | 3 +--
 2 files changed, 8 insertions(+), 2 deletions(-)
 create mode 100644 .changeset/wild-areas-lick.md

diff --git a/.changeset/wild-areas-lick.md b/.changeset/wild-areas-lick.md
new file mode 100644
index 000000000..3653c9b3d
--- /dev/null
+++ b/.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.
diff --git a/packages/mermaid/src/diagrams/timeline/timelineRenderer.ts b/packages/mermaid/src/diagrams/timeline/timelineRenderer.ts
index 7f406b589..a0063a5f0 100644
--- a/packages/mermaid/src/diagrams/timeline/timelineRenderer.ts
+++ b/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);