Match sticky changed-files header tint to card background

[juliusmarminge]

Before

After

Summary

• Updated the sticky changed-files section header to use the same mixed card/background tint as its container.
• Applied the same tint to the header’s top background extension so the sticky edge blends cleanly while scrolling.

Testing

• Not run (PR content only).

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Note

Low Risk
Low risk UI-only styling tweak that changes background colors for a sticky header; no logic, data, or API behavior is modified.

Overview
Updates the sticky Changed files header in MessagesTimeline.tsx to use the same color-mix() card/background tint as its container instead of bg-background.

Applies the same tinted background to the header’s before pseudo-element so the sticky top edge blends consistently while scrolling.

^{Reviewed by Cursor Bugbot for commit 28b6e5c. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Match sticky changed-files header background to card color

Updates the sticky header in AssistantChangedFilesSectionInner to use a CSS color-mix value (45% --card, 55% --background) instead of the plain --background color, applied to both the element and its ::before pseudo-element in MessagesTimeline.tsx.

^{Macroscope summarized 28b6e5c.}

[macroscopeapp]

Approvability

Verdict: Approved

Pure CSS styling change that adjusts a sticky header's background color using color-mix to better match the card background. No runtime behavior or logic is affected.

^{You can customize Macroscope's approvability policy. Learn more.}

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