struct ContentView: View {
   @State private var isActive = false

   var body: some View {
      VStack(spacing: 10) {
         Image(systemName: "wifi")
            .font(.largeTitle)
            .symbolEffect(.variableColor.iterative, options: .repeating, isActive: isActive)
         Button("Animate") {
            isActive.toggle()
         }.buttonStyle(.glassProminent)
      }
   }
}