← Back to gallery
CSS

Dark Mode Token Transition Fallback

A paint-only dark mode token transition that crossfades color, background, border, and shadow without animating layout or using transition: all.

Duration
2s
Resolution
1440×900
Format
CSS
dark-modetheme-tokenstransitioncolor-schemepaint-only

Theme Transition / Token Fallback

Dark Mode Token Transition Fallback

A constrained color-token transition moves background, foreground, borders, and shadows without using transition: all.

system toggle theme transition - 1.8s cycle · 1.00 intensity
ThemeToken transition

Short color transition

System Toggle

Core UI tokens crossfade quickly between light and dark surfaces.

Only color, background-color, border-color, and box-shadow are transitioned.

  • dark-mode
  • tokens
  • transition
EditorToken transition

Border and text sync

Editor Surface

An editor-like panel keeps text, border, and accent colors synchronized.

The panel stores final theme tokens and transitions the rendered properties.

  • fallback
  • border-color
  • surface
CompactToken transition

Low-motion fallback

Compact UI

A dense control surface uses a shorter transition to avoid visible flashing.

No geometry property participates in the theme transition.

  • compact
  • reduced-motion
  • paint-only

Theme inspector

System Toggle

ThemeToken transition
Motion contract
Only color, background-color, border-color, and box-shadow are transitioned.
Accessibility
Reduced motion shortens the transition while keeping the final theme state.

Limit transitions to paint-only properties so theme changes do not animate layout.

css
.theme-surface {
  transition:
    color 1.80s ease,
    background-color 1.80s ease,
    border-color 1.80s ease,
    box-shadow 1.80s ease;
}

.theme-surface[data-theme="dark"] {
  color: #f8fafc;
  background-color: #0f172a;
  border-color: #38bdf8;
}

@media (prefers-reduced-motion: reduce) {
  .theme-surface { transition-duration: 1ms; }
}