Issue: Front Matter CMS breaks Output Colorizer syntax highlighting in Output panel #767

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opened 2026-10-05 03:04:26 +02:00 by adam · 1 comment
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Describe the bug
When Front Matter CMS is enabled, the Output Colorizer extension (ibm.output-colorizer) stops applying syntax highlighting to the VS Code Output panel. All output appears as plain white text with no colorization. Disabling Front Matter CMS and reloading VS Code immediately restores the syntax highlighting.

To Reproduce

  1. Install Output Colorizer (ibm.output-colorizer)
  2. Install and enable Front Matter CMS (eliostruyf.vscode-front-matter)
  3. Open any project and check the Output panel
  4. No syntax highlighting is applied — all text is plain white
  5. Disable Front Matter CMS and reload VS Code
  6. Syntax highlighting is restored

Expected behavior
Output Colorizer should apply syntax highlighting to the Output panel regardless of whether Front Matter CMS is enabled.

Screenshots
(If possible, attach before/after screenshots)

Image Image

Device:

  • OS: Windows 11, macOS (both affected)
  • Front Matter CMS Version: 10.9.0
  • VS Code: latest

Additional context
Isolated the conflict by launching VS Code with code --disable-extensions and re-enabling extensions one by one. Front Matter CMS may be overriding the Output panel's language mode or TextMate grammar scope, which prevents Output Colorizer from applying its syntax rules.

**Describe the bug** When Front Matter CMS is enabled, the Output Colorizer extension (`ibm.output-colorizer`) stops applying syntax highlighting to the VS Code Output panel. All output appears as plain white text with no colorization. Disabling Front Matter CMS and reloading VS Code immediately restores the syntax highlighting. **To Reproduce** 1. Install Output Colorizer (`ibm.output-colorizer`) 2. Install and enable Front Matter CMS (`eliostruyf.vscode-front-matter`) 3. Open any project and check the Output panel 4. No syntax highlighting is applied — all text is plain white 5. Disable Front Matter CMS and reload VS Code 6. Syntax highlighting is restored **Expected behavior** Output Colorizer should apply syntax highlighting to the Output panel regardless of whether Front Matter CMS is enabled. **Screenshots** (If possible, attach before/after screenshots) <img width="2956" height="1090" alt="Image" src="https://github.com/user-attachments/assets/bbeb9c7d-ccff-46eb-8e7e-44499e45882f" /> <img width="3010" height="912" alt="Image" src="https://github.com/user-attachments/assets/a7f22f9a-3e09-4363-af04-9cd46c1d651e" /> **Device:** - OS: Windows 11, macOS (both affected) - Front Matter CMS Version: 10.9.0 - VS Code: latest **Additional context** Isolated the conflict by launching VS Code with `code --disable-extensions` and re-enabling extensions one by one. Front Matter CMS may be overriding the Output panel's language mode or TextMate grammar scope, which prevents Output Colorizer from applying its syntax rules. <!-- github-sync-id:4068075125 -->
adam closed this issue 2026-10-05 03:04:27 +02:00
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Owner

@brightro99 thanks for opening the issue. A fix is rolling out in the latest beta version.

https://marketplace.visualstudio.com/items?itemName=eliostruyf.vscode-front-matter-beta

@brightro99 thanks for opening the issue. A fix is rolling out in the latest beta version. https://marketplace.visualstudio.com/items?itemName=eliostruyf.vscode-front-matter-beta <!-- github-comment-id:4060188477 -->
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Reference: adam/vscode-front-matter#767