public async Task FinishTransitionAsync()
 {
     //Transition is ready to finish
     //This will pop a panel off the stack and then allow the transition to complete
     //For example we might not want to have a scene transition curtain raise till a panel is popped
     await _stack.PopAsync();
 }
 public async Task FinishTransitionAsync()
 {
     await stack.PopAsync();
 }