Problem: ComposeCookBook supports dynamic color, but not accessibility-focused contrast-aware Material 3 theming.
Proposed solution: Add a theme demo showing normal / medium / high contrast schemes and runtime switching.
Why now: Official Reply includes contrast-aware color schemes via Theme.kt with UiModeManager.contrast; current repo only has light/dark/dynamic behavior.
Related: PR #198 – Unblock Android CI after ktfmt upgrade
Problem: ComposeCookBook supports dynamic color, but not accessibility-focused contrast-aware Material 3 theming.
Proposed solution: Add a theme demo showing normal / medium / high contrast schemes and runtime switching.
Why now: Official Reply includes contrast-aware color schemes via Theme.kt with UiModeManager.contrast; current repo only has light/dark/dynamic behavior.
Related: PR #198 – Unblock Android CI after ktfmt upgrade