AIMarkTechPostabout 5 hours ago
Meta Open-Sources Astryx Design System
11 min read
Meta released Astryx, an open-source React design system with 150+ accessible components, seven themes, dark mode, templates, and a CLI. Built over eight years internally, it separates behavior and accessibility from visual theming via CSS token overrides. The system is designed for both human developers and AI agents, requiring React 19+ and shipping pre-built CSS with no build plugin.
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