Fix terminal color contrast

[chungweileong94]

What Changed

Fix terminal color contrast issue, mostly colors like black, bright black, white & bright white.

Why

In some cases those colors make things unreadable.

UI Changes

Left = Before
Right = After

Checklist

• This PR is small and focused
• I explained what changed and why
• I included before/after screenshots for any UI changes
• I included a video for animation/interaction changes

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Note

Low Risk
Low risk: only updates xterm theme RGB values for black/white variants in light and dark modes to improve readability; no behavior or data-flow changes.

Overview
Improves the thread terminal’s readability by adjusting the xterm theme palette for both dark and light modes, specifically tuning black, brightBlack, white, and brightWhite colors to increase contrast.

^{Reviewed by Cursor Bugbot for commit d386b44. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Fix terminal color contrast in dark and light modes

Updates color constants for black, white, brightBlack, and brightWhite in the terminalThemeFromApp util in ThreadTerminalDrawer.tsx. No logic changes; only the literal color values are modified.

^{Macroscope summarized d386b44.}

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[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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[cursor]

Light theme brightWhite is darker than white

Medium Severity

In the light theme, brightWhite (rgb(102, 113, 128)) is darker than white (rgb(120, 131, 146)), inverting the expected brightness relationship. Every other ANSI color pair in both themes has the "bright" variant lighter than the base variant. This inconsistency will cause unexpected visual results when terminal programs use brightWhite for emphasis — it'll appear dimmer instead of brighter.

Additional Locations (1)

• apps/web/src/components/ThreadTerminalDrawer.tsx#L126-L127

 

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[macroscopeapp]

Approvability

Verdict: Needs human review

While this is a simple color contrast adjustment, an unresolved review comment identifies a potential bug where brightWhite is darker than white in the light theme, inverting the expected brightness relationship. This should be addressed before merging.

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