• Native SF Symbol rendering — app.fill drawn at natural size with draw(at:) for correct squircle shape
• SettingsIconSize enum: .standard (32/16pt) and .custom(CGFloat)
• UIGraphicsImageRenderer instead of deprecated UIGraphicsBeginImageContext
• SwiftUI SettingsIcon view with proper .resizable().scaledToFit() layout
• Swift 6.0, iOS 15+, macOS 13+
• SPM only (CocoaPods removed)

Breaking changes: minimum iOS raised to 15, tvOS dropped, API now accepts optional size parameter.