catalyst

Every widget imports only from flutter/widgets.dart. Drop catalyst_ui into any Flutter app without pulling in Material or Cupertino.

Colour scheme, typography, motion, shadows, and tokens are strongly typed and read through BuildContext extensions.

Variants and tones are abstract classes — subclass them and resolve to any style, rather than being locked to a fixed enum.

Components are organised into atoms, molecules, and organisms so you can find the right building block fast.