struct ContentView: View {
   var body: some View {
      TabView {
         Tab("Home", systemImage: "book.circle") {
            Text("Main Screen")
         }
         Tab("Settings", systemImage: "gear") {
            Text("Settings")
         }
          Tab("Shopping Cart", systemImage: "cart", role: .prominent) {
             Text("Shopping")
          }
      }
   }
}