NavigationView title iOS 15

Hello,

The NavigationView just changed and I'm a bit lost. Could you tell me the correct way to show the title with a background (material) if the content is a map?

Thanks!!!

import SwiftUI

struct ExampleStationListView_Previews: PreviewProvider {
    static var previews: some View {
        NavigationView {
            Map(mapRect: .constant(MKMapRect.world))
                .ignoresSafeArea()
                .navigationBarTitle("Select Station", 
                    displayMode: .inline)
        }
    }
}