Symphonary.NWGUI.About_Clicked C# (CSharp) 메소드

        private void About_Clicked(object sender, RoutedEventArgs e)
        {
            if (aboutScreen.Visibility == Visibility.Visible) {
                aboutScreen.Visibility = Visibility.Hidden;
                normal.Visibility = Visibility.Visible;
            }
            else {
                aboutScreen.Visibility = Visibility.Visible;
                normal.Visibility = Visibility.Hidden;
            }
        }