SwiftUI Liquid Glass

Use Liquid Glass as system chrome and interaction hierarchy, not as a decorative coating for every surface.

Workflow

1. Confirm the build SDK and minimum deployment target. Liquid Glass APIs require an iOS 26+ availability path.
2. Identify the small set of controls or floating surfaces that need separation from content.
3. Prefer system navigation, tab, toolbar, search, and button behavior before custom glass.
4. Apply layout, shape, and content modifiers before the glass effect.
5. Group nearby custom glass elements in GlassEffectContainer so they render and morph coherently.
6. Mark glass interactive only when the element actually accepts input.
7. Provide an earlier-OS fallback using native materials or standard controls, not a visual imitation that changes behavior.
8. Verify increased contrast, reduced transparency, reduced motion, Dynamic Type, dark appearance, and scrolling performance.

Guardrails