Lumen Playground

Lumen Playground is the living SwiftUI catalog for Lumen UI, a cross-platform primitive design system. Search the public component library, exercise real native controls, and compare Lumen's semantic light and dark themes directly on iPhone or iPad. Every example is built with the same LumenUI package available to application developers. Explore: • Foundations, actions, forms, feedback, data display, navigation, and native presentations • Interactive loading, disabled, selected, validation, overlay, and empty states • Native Dynamic Type, VoiceOver semantics, focus behavior, and platform conventions • Shared Lumen icons, colors, spacing, typography, and visual treatments • Direct links to implementation documentation and public support The catalog works without an account and does not include advertising, analytics, tracking, or data collection.