Custom Label doesn't work (MenuPickerStyle)

Why is there no custom label displayed? Thanks for an answer.

struct ContentView: View{

    @State var selection = 0

    let numbers = [1,2,3,4,5]

    var body: some View{

        Picker(selection: $selection, content: {

            ForEach(numbers,id:\.self){i in

                Text("Number \(i)").tag(i)

            }

        }, label: {

            Text("\(selection)")

                .padding()

                .background(Circle().foregroundColor(.red))

        })

        .pickerStyle(MenuPickerStyle())

    }

}