The calendar and clock icons in date/time input fields were showing as black regardless of theme, making them hard to see on dark themes.
Changes:
- Add --calendar-picker-filter CSS variable to control icon appearance
- Set filter to none for light themes (keep default black icons)
- Set filter to invert(1) brightness(0.9) for all dark themes
- Apply styling to ::-webkit-calendar-picker-indicator and ::-moz-calendar-picker-indicator
- Cover all dark themes: dark, midnight, charcoal, nord, dracula
The date/time picker icons now properly invert to white/light colors on dark themes while remaining black on light themes.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
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