swiftui change navigation bar height

////  ContentView.swift//  test////  Created by Francisco Gindre on 1/3/20.//  Copyright © 2020 Francisco Gindre. All rights reserved.//import SwiftUIstruct ContentView: View {    init() {        // this is not the same as manipulating the proxy directly        let appearance = UINavigationBarAppearance()                // this overrides everything you have set up earlier.        appearance.configureWithTransparentBackground()                // this only applies to big titles        appearance.largeTitleTextAttributes = [            .font : UIFont.systemFont(ofSize: 20),            NSAttributedString.Key.foregroundColor : UIColor.white        ]        // this only applies to small titles        appearance.titleTextAttributes = [            .font : UIFont.systemFont(ofSize: 20),            NSAttributedString.Key.foregroundColor : UIColor.white        ]                //In the following two lines you make sure that you apply the style for good        UINavigationBar.appearance().scrollEdgeAppearance = appearance        UINavigationBar.appearance().standardAppearance = appearance                // This property is not present on the UINavigationBarAppearance        // object for some reason and you have to leave it til the end        UINavigationBar.appearance().tintColor = .white            }    var body: some View {        NavigationView {            ZStack {                Color.black                    .edgesIgnoringSafeArea([.all])                NavigationLink(destination: ContentView2()) {                    Text("push")                }            }            .navigationBarTitle("", displayMode: .inline)            .navigationBarBackButtonHidden(true)        }    }}struct ContentView_Previews: PreviewProvider {    static var previews: some View {        ContentView()    }}struct ContentView2: View {        var body: some View {                    ZStack {                Color.black                    .edgesIgnoringSafeArea([.all])                NavigationLink(destination: ContentView()) {                    Text("push")                }            }            .navigationBarTitle("My Custom White title", displayMode: .inline)            }}