30 lines
1.4 KiB
Markdown
30 lines
1.4 KiB
Markdown
## Why
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The current UI is locked to dark presentation, which does not match all user preferences or accessibility needs. Adding multi-theme support now improves usability and lets returning users keep a consistent visual experience.
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## What Changes
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- Add a theme switcher in the top-right header area.
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- Support four theme modes: **system**, **light**, **dark**, and **high-contrast**.
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- Render theme options as icons (not text-only controls).
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- Persist selected theme in client storage with **localStorage as primary** and **cookie fallback**.
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- Restore persisted theme for returning users.
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- Use **system** as default when no prior selection exists.
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## Capabilities
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### New Capabilities
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- `theme-switcher-control`: Provide an icon-based theme switcher in the header with system/light/dark/high-contrast options.
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- `theme-preference-persistence`: Persist and restore user-selected theme using localStorage first, with cookie fallback.
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- `theme-default-system`: Apply system theme automatically when no saved preference exists.
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### Modified Capabilities
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- None.
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## Impact
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- **Frontend/UI:** Header controls and global styling system updated for four theme modes.
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- **State management:** Client-side preference state handling added for theme selection and restoration.
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- **Accessibility:** High-contrast option improves readability for users needing stronger contrast.
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- **APIs/Backend:** No required backend API changes expected.
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