Highlights: - Migrated to Vanilla Extract for zero-runtime CSS (no styled-components) - New grouped configuration API (props: layout, interaction, content, display, media, animation, accessibility, i18n) - Per-element Google Fonts control and font caching - Complete i18n covering 40+ text elements - Cross-browser fullscreen mode with keyboard shortcuts - Advanced dark mode (36 customizable theme props, 13 new in v3.0) - Sticky toolbar, enhanced search - TypeScript, React 18.2+ support - Full backward compatibility with v2.x
More details in the README and changelog!