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Theming

ABCrimson edited this page Mar 7, 2026 · 1 revision

Theming

OKLCH Color Space

All colors use OKLCH — a perceptually uniform color space with P3-gamut support:

:root {
 --color-hue: 265; /* Change this one value to re-theme everything */
 --color-primary: oklch(0.65 0.25 var(--color-hue));
 --color-surface-0: oklch(0.99 0.002 var(--color-hue));
 --color-text: oklch(0.20 0.02 var(--color-hue));
}

Why OKLCH?

  • Perceptually uniform — Equal lightness steps look equal to humans
  • P3-gamut — Wider color range on modern displays
  • Simple theming — Change --color-hue to shift the entire palette
  • Dark mode — Invert lightness values for automatic dark mode

CSS Custom Properties

Colors

Property Description
--color-hue Base hue angle (0-360)
--color-primary Primary brand color
--color-surface-0 through --color-surface-3 Surface hierarchy
--color-text Primary text
--color-text-secondary Secondary text
--color-border Border color

Animation

Property Description
--ease-spring Spring easing via linear()
--ease-out-expo Exponential ease-out
--transition-fast 120ms fast transition
--transition-normal 200ms normal transition

Data Attributes for Styling

Selector Target
[data-command] Root container
[data-command-input] Search input
[data-command-list] List container
[data-command-item] Individual items
[data-command-item][data-active] Active (highlighted) item
[data-command-item][data-disabled] Disabled item
[data-command-group-heading] Group heading
[data-command-separator] Separator line
[data-command-empty] Empty state
[data-command-dialog] Dialog container
[data-command-overlay] Dialog overlay

Dark Mode

OKLCH lightness inversion:

@media (prefers-color-scheme: dark) {
 :root {
 --color-primary: oklch(0.75 0.20 var(--color-hue));
 --color-surface-0: oklch(0.15 0.01 var(--color-hue));
 --color-text: oklch(0.93 0.01 var(--color-hue));
 }
}

Custom Theme Example

/* Ocean theme — just change the hue */
:root { --color-hue: 200; }
/* Rose theme */
:root { --color-hue: 350; }
/* Amber theme */
:root { --color-hue: 40; }

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