Example:

    NavigationView {
        VStack {
            Text("Test")
        }
        .navigationBarTitleDisplayMode(.inline)
        .navigationViewStyle(StackNavigationViewStyle())
        .toolbar(content: {
            ToolbarItem(placement: .principal) {
                Text("Test Title")
                    .foregroundStyle(Color.black)
                    .font(.headline)
            }
        })
    }