#4014·dendron

Dendron Mermaid Support Overrides New VS Code Built-In Mermaid Support

Author: jgmpjgmpCreated May 22, 2026Updated May 22, 2026
Labelstype.bugscope.markdownstatus.triage-neededscope.views

Please select the area your bug applies to. (Multiple selections are Possible. You can leave blank if you're not sure.)

  • Workspace. VSCode workspace, vaults, Intellisense/autocomplete, Dendron settings
  • Lookup. Dendron's Lookup Command
  • Views. Dendron Preview, Tree View, Side Panels in the UI
  • Schema. Dendron Schemas
  • Pod. Data import from / export to Dendron
  • Publish. External Site Publish
  • Markdown. Markdown features, such as syntax support and features

Describe the bug

Dendron built-in Mermaid overrides the now standard VS-code Mermaid support

To Reproduce

View any mermaid diagram, e.g.:

mermaid
flowchart LR
  Sleep[Sleep] --> Wake{Awake?}
  Wake -->|No| Sleep
  Wake -->|Hungry| Snack[Get treat]
  Wake -->|Not in in Sun?| Move[Move to sun]
  Wake -->|Human is typing| Keyboard[Sleep on keyboard]
  Snack --> Sleep
  Move --> Sleep
  Keyboard --> Sleep

Expected behavior

Best would be to disable Dendron Mermaid support in favor of the standard VS code support.

Screenshots

If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information)

  • OS: Win11
  • Browser: Edge
  • Versions (all that apply to bug):
    • Dendron Extension: 0.124.0
    • VS Code version: 1.121.0
    • Dendron CLI:

Additional context

Add any other context about the problem here.

Dendron Log file

Please attach the output of > Dendron:Dev: Open Logs here