如何在macOS上更改已禁用的SwiftUI TextField的背景色和前景色

struct CustomTextFieldStyle: TextFieldStyle {
    func _body(configuration: TextField<Self._Label>) -> some View {
        configuration
            .padding(10)
            .background(Color.gray.opacity(0.2))
            .foregroundColor(.gray)
            .cornerRadius(5)
            .disabled(true)
    }
}

struct ContentView: View {
    @State private var text: String = ""
    @State private var isDisabled: Bool = true
    
    var body: some View {
        VStack {
            TextField("Enter text", text: $text)
                .textFieldStyle(CustomTextFieldStyle())
                .disabled(isDisabled)
            
            Button(action: {
                self.isDisabled.toggle()
            }) {
                Text("Toggle Disable")
            }
        }
        .padding()
    }
}