- simplify ActivityCalendar state handling and shared max-count utilities
- remove calendar ring styling and darken the default dark theme primary colors
- tighten the audio recorder panel layout and action sizing
- Reduce themes from 6 to 4: system, light, dark, paper
- Remove midnight (too similar to dark) and whitewall (too similar to light)
- Drop all unused tokens: chart-*, sidebar-primary, sidebar-border,
sidebar-ring, shadow-2xs, tracking-normal, spacing
- Remove redundant @theme inline blocks from dynamic theme files
(Tailwind only processes them at compile time, not at runtime)
- Move shared tokens (fonts, radius) to default.css only
- Polish dark mode color palette
- Consistent cool-slate hue (h265) across all surfaces
- Proper surface layering: sidebar(0.07) → bg(0.09) → card(0.13) →
popover(0.17) → secondary(0.19) → muted(0.21) → accent(0.22)
- Foreground softened to 0.82 (from 0.9) — comfortable off-white
- Accent more chromatic than muted (0.012 vs 0.008) — hover feels interactive
- Popover elevated above card (0.17 vs 0.13) — floating elements visible
- Destructive more vivid (0.62/c0.20) — clearly red on dark surfaces
- Input border (0.25) more distinct than layout border (0.21)
- Sidebar foreground (0.68) dimmer than content foreground (0.82)
- Fix inline code background invisible in dark mode (#5674)
- Muted was same lightness as card — increased to 0.21 for clear contrast
