I found only one way to make splash display time longer.
That is changing ApplicationDefinition to Page and configuration it\'s time.
But I need ApplicationDefin
Another approach is to find the App.g.cs file and its Main():
public static void Main() {
SplashScreen splashScreen = new SplashScreen("splash.jpg");
splashScreen.Show(true);
Thread.Sleep(3000);
someNameSpace.App app = new someNameSpace.App();
app.Run();
}
Where the only newly added field is Thread.Sleep(3000);, which will delay the showing of the splash screen by 3 seconds.