Added tests for colors and fully setup cypress in Docker

docker-compose.yml

@@ -17,18 +17,17 @@ services:
       - 9000:9000
       - 3333:3333
   cypress:
-    image: cypress/base:18.16.0
+    image: cypress/included:12.16.0
     stdin_open: true
     tty: true
     working_dir: /mermaid
     mem_limit: '2G'
+    entrypoint: cypress
     environment:
-      - NODE_OPTIONS=--max_old_space_size=2048
+      - DISPLAY
     volumes:
       - ./:/mermaid
-      - root_cache:/root/.cache
-      - root_local:/root/.local
-      - root_npm:/root/.npm
+      - /tmp/.X11-unix:/tmp/.X11-unix
     network_mode: host
 
 volumes: