iOS 26 Liquid Glass design language + the SwiftUI APIs that implement it, sourced from Apple's WWDC25 sessions 219/323 and developer.apple.com. Covers the functional-layer-over-content mental model, regular vs clear variants, glass-on-glass/over-tint don'ts, the floating tab bar, scroll edge effects
iOS 26 Liquid Glass design language + the SwiftUI APIs that implement it, sourced from Apple's WWDC25 sessions 219/323 and developer.apple.com. Covers the functional-layer-over-content mental model, regular vs clear variants, glass-on-glass/over-tint don'ts, the floating tab bar, scroll edge effects, concentric corners, accessibility behavior, and a verified-vs-community API table. Use when buildi