A/B Testing Quickstart SwiftUI Outline Table of Contents Design Context Design AppConfig Multi-platform Conditional Compilation Media iOS Animation ContentView - Light ContentView - Refreshing (iOS 15) ContentView - Dark tvOS Animation ContentView - Light ContentView - Dark macOS Animation ContentView - Light ContentView - Dark watchOS Animation ContentView - Light ContentView - Dark Mac Catalyst Animation ContentView - Light ContentView - Dark Symbols ABTestingExampleApp appConfig init body AppConfig AppConfig colorScheme init deinit updateFromRemoteConfig updateFromRemoteConfigAsync printInstallationAuthToken ColorScheme init RemoteConfigFetchAndActivateStatus debugDescription ContentView ContentView appConfig body FirebaseList appConfig data body BasicList data body