private void EasyR_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
VisibleRects();
HardR.AnimateOpacity(1);
NormalR.AnimateOpacity(1);
EasyR.AnimateOpacity(0, Completed: (element) => element.Visibility = Visibility.Hidden);
difficulty = Difficulty.Easy;
}
private void NormalB_Clicked(object sender, EventArgs e)
{
VisibleRects();
HardR.AnimateOpacity(1);
EasyR.AnimateOpacity(1);
NormalR.Visibility = Visibility.Hidden;
ShowInputAnimate();
difficulty = Difficulty.Normal;
}