Icon in the navigation bar in the TabbedPage

See below my App running

below is the Login Page code

public  void Login_Clicked(object sender, EventArgs e)
        {
            LoginService svc = new LoginService();
            LoginRS res = svc.Login(txtUsuario.Text, txtSenha.Text);
            if (res != null && res.Success  )
            {
                App.LooggedUser = res;

                Application.Current.MainPage = new MasterDetailPage
                {
                    Master = new Master(),
                    Detail = new TabbedPage
                    {
                        Children =
                        {
                            new NavigationPage(new Indicadores()){ Title = "Indicadores"},
                            new NavigationPage(new PaineisPage()){ Title = "Painéis"}
                        }
                    }
                };
.....
}

below is my App.xaml.cs

public static bool IsUserLoggedIn { get; set; }
public static string LastPassword { get; set; }
public static LoginRS LooggedUser { get; set; }
public NavigationPage NavigationPage { get; private set; }
public static NavigationPage NavPage { get; set; }

        public static MasterDetailPage MasterDetail { get; set; }
        public async static Task NavigateAsynNavigateMasterDetail(Page page)
        {
            App.MasterDetail.IsPresented = false;
            await App.MasterDetail.Master.Navigation.PushAsync(page);
        }

        public App()
        {
            InitializeComponent();

            if (!IsUserLoggedIn)
            {
                NavPage = new NavigationPage(new LoginPage());
                MainPage = NavPage;
            }
            else
            {
                NavPage = new NavigationPage(new MainPage());
                MainPage = NavPage;
            }
        }

below is my Indicadores constructor page

InitializeComponent();
NavigationPage.SetHasNavigationBar(this, true);
NavigationPage.SetTitleIcon(this, "estapar.png");

I did various attempts trying to put an image in the bar but not get. I thought that navigation bar belong to Detail page, but i'm not getting to do. I tried in the Master, MainPage and nothing. It seems easy but doesn't work. I have no resource, no longer. How can i put an image in the bar next to menu icon? When i thought that solve all my issues appears more.