private void OnYellowNoteClicked(object sender, RoutedEventArgs e)
 {
     MyDesignerCanvas.CreateTextPostAt(new Point(50, 50));
 }
 private void OnBlueNoteClicked(object sender, RoutedEventArgs e)
 {
     MyDesignerCanvas.CreateTextPostAt(new Point(50, 50), Colors.LightSkyBlue);
 }
 private void OnPinkNoteClicked(object sender, RoutedEventArgs e)
 {
     MyDesignerCanvas.CreateTextPostAt(new Point(50, 50), Colors.Pink);
 }