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[Repo Assist] Reduce dark mode border contrast#983

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[Repo Assist] Reduce dark mode border contrast#983
github-actions[bot] wants to merge 1 commit intomainfrom
repo-assist/fix-issue-885-dark-mode-border-contrast-0f8ce2335bfe0dc9

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@github-actions github-actions bot commented Feb 22, 2026

🤖 This is an automated PR from Repo Assist, an AI assistant for this repository.

Closes #885

Problem

In dark mode, --header-border was #9b9b9b — a fairly light grey against the near-black background rgb(20, 21, 26). This produced high-contrast, visually busy divider lines inconsistent with the subtle, low-contrast borders in light mode (#e8ecf1 against white).

Fix

Changed --header-border in [data-theme=dark] from #9b9b9b to #3a3a42. This is a dark grey that remains distinguishable from the background while matching the visual subtlety of the light-mode borders.

Contrast comparison:

  • Light mode: #e8ecf1 on white — very subtle
  • Dark mode before: #9b9b9b on #14151a — high contrast (~6:1)
  • Dark mode after: #3a3a42 on #14151a — subtle (~1.8:1), consistent with light mode feel

Test Status

This is a CSS-only change with no F# code impact. No build or test failures expected. Visual verification needed by a maintainer with dark mode enabled.

Generated by Repo Assist

To install this workflow, run gh aw add githubnext/agentics/workflows/repo-assist.md@ee50a3b7d1d3eb4a8c409ac9409fd61c9a66b0f5. View source at https://github.com/githubnext/agentics/tree/ee50a3b7d1d3eb4a8c409ac9409fd61c9a66b0f5/workflows/repo-assist.md.

The --header-border variable in dark mode was #9b9b9b (fairly light grey)
against a near-black background rgb(20,21,26), creating high contrast
dividers inconsistent with the subtle borders in light mode.

Change to #3a3a42 to match the low-contrast feel of the light-mode borders.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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✅ Pull request created: #983

@dsyme dsyme marked this pull request as ready for review February 23, 2026 11:21
@dsyme dsyme closed this Feb 23, 2026
@dsyme dsyme reopened this Feb 23, 2026
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nojaf commented Feb 23, 2026

image

/repo-assist looks good. Add entry to RELEASE_NOTES.md and we can merge this.

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Dark mode borders: too much contrast?

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