Runtime change of app's tint color

App.swift

struct HammerHeart: SwiftUI.App {
    @UIApplicationDelegateAdaptor private var delegate: AppDelegate
    @Shared(.appTintColor) var appTintColor: Color

    var body: some Scene {
        WindowGroup {
            AppView(store: AppDelegate.store)
                .accentColor(appTintColor)
                .tint(appTintColor)
                .onChange(of: appTintColor) {
                    UIView.appearance().tintColor = UIColor(appTintColor)
                    UINavigationBar.appearance().tintColor = UIColor(appTintColor)
                    UITabBar.appearance().tintColor = UIColor(appTintColor)

                    UIApplication.shared.connectedScenes.forEach { scene in
                        if let windowScene = scene as? UIWindowScene {
                            windowScene.windows.forEach { window in
                                window.tintColor = UIColor(appTintColor)
                                window.reload()
                            }
                        }
                    }
                }
        }
    }
}

private extension UIWindow {
    func reload() {
        subviews.forEach { view in
            view.removeFromSuperview()
            addSubview(view)
        }
    }
}