SwiftUI—如何设置导航栏里的标题样式

struct ContentView : View {
    var body: some View {
        NavigationView {
//            Text("SwiftUI's NavigationView")
//            Text("SwiftUI's NavigationView")
//                .navigationBarTitle(Text("SwiftUI"))
//            Text("SwiftUI's NavigationView")
//                .navigationBarTitle(Text("SwiftUI"), displayMode: .large)
            Text("SwiftUI's NavigationView")
                .navigationBarTitle(Text("SwiftUI"), displayMode: .inline)
        }
    }
}