Apply Material 3 (Material You)

Google's design system for Android 12+. Required for App Store featuring + Editor's Choice.

The 5 pillars of Material 3

1. Color — Material You dynamic colors (user wallpaper → app theme)
2. Typography — Material 3 type scale (display, headline, title, body, label)
3. Shape — Corner radius scale (xs/sm/md/lg/xl/full)
4. Motion — Easing curves, duration tokens
5. Components — 35+ standard components

Component conventions

App bars

• Top app bar (small) — most common, 64dp height
• Top app bar (medium) — collapses, 112dp expanded
• Top app bar (large) — for hero screens, 152dp expanded
• Use Appbar.Header with mode="small" | "medium" | "large"