v0.12.0

Released 2026-09-14.

Presets are a palette, and nothing else

A shipped preset used to move more than color. Every one set --manti-radius-factor alongside --manti-cool-hue, and Graphite also carried a density: --manti-space-1 plus the three control heights. Importing themes/ocean.css for its blue therefore rounded every corner in the app, and Graphite squared and compacted the layout on the way in.

Shape and density are product decisions. A palette must not make them, so a preset now sets only the colors:

each base color expanded into the full --variant-* vocabulary,
the two branded roles no [data-variant] block can reach, --manti-accent-fill and --manti-selection-*,
and --manti-cool-hue, the single hue behind every gray, surface, border and text role.

Swap Ocean for Forest and only the color changes.

Breaking

MantiPresetDefinition drops radiusFactor and density, and the generated stylesheets in @manti-ui/styles/themes no longer declare them. An app that liked the corner or the spacing its preset came with gets the shipped values back, and the fix is the one declaration that always owned the decision:

@import '@manti-ui/styles/index.css';
@import '@manti-ui/styles/themes/ocean.css';

:root {
  --manti-radius-factor: 1.4;
}

The data-radius modes (none, sharp, default, round, pill) are unchanged and still retune a whole subtree.

TypeScript code that read presets.ocean.radiusFactor or presets.graphite.density no longer compiles; those values are a theme's own choice now.

Last updated 14 September 2026