fix(ui): improve highlighted button and spinner contrast - #11279

Changes

• Use the computed accent foreground for highlighted buttons so custom light themes receive dark text while dark themes retain white text.
• Make the unsaved changes Enter shortcut inherit its button foreground, border, and tint instead of using fixed purple and white values.
• Add regression coverage for highlighted-button and keyboard-shortcut contrast.

Issues

• Fixes the unreadable Enter shortcut and highlighted-button labels reported with some theme colors.

Category

• Bug fix
• Improvement
• New feature
• Adding new one click service
• Fixing or updating existing one click service

Preview

Before

After

Theme contrast gallery

AI Assistance

• AI was NOT used to create this PR
• AI was used (please describe below)

If AI was used:

• Tools used: OpenAI Codex
• How extensively: Used for diagnosis, implementation, automated tests, a 12-theme visual contrast matrix, and PR preparation. The changes were reviewed and tested by the contributor on a local Coolify instance.

Testing

• Ran the focused Pest suite: 24 tests passed with 103 assertions.
• Ran the Vite production build successfully.
• Verified the real unsaved changes bar on a local Coolify instance.
• Checked 12 light and dark custom theme colors in a browser; the button and shortcut foreground matched in every case.

Contributor Agreement