UI Color Palette 5.3.5

Scale just goes faster and is more fun
¹Figma ²Dev Mode ³FigJam ⁴VSCode ⁵Penpot ⁶Sketch ⁷Framer ⁸Buzz
✨ Improvements
🎛️ Hue & chroma curves
Choose how the shift spreads across the scale
: Hue shift and chroma now follow one of three curves — Linear (even distribution across all stops), Hyperbola (both ends share the same threshold, for a symmetric interpolation concentrated at the extremities), and Free (left and right thresholds set independently, for asymmetric control over shades and tints). Configurable for hue and chroma, globally and per color; resetting a color restores the global value. Existing palettes are migrated automatically.
⚡ Scale up to −82% faster
The LCH scale engine has been rewritten
: script evaluation 26 984ms → 4 852ms (−82%), main thread work 29 227ms → 6 575ms (−77%), long tasks over 50ms 20 → 9 (−55%). Large palettes now generate without blocking the UI.
🎨 Palette preview in the LCH sliders
See the result inside the track
: The lightness, hue and chroma sliders display a live preview of the generated palette, so every shade reacts as you drag.
📂 Scale panel opens automatically
Visible from the start
: The Scale panel now expands by default when a palette is opened.
🔧 Minor Changes
Responsive layout on Buzz & Framer
: On smaller panel sizes, the preview and the configuration panel stack vertically, eliminating horizontal overflow. ⁷·⁸
Color wheel button repositioned
: The wheel action button sits closer to the generated palette with a secondary visual weight, reducing confusion between wheel colors and the exportable palette.
DTCG format updated to v1
: Token exports use resolvers
 instead of $extensions
 for color modes and semantics, and produce a resolver package alongside a zip of token sets. ¹·²·⁴·⁵·⁶·⁷