protected void UpdateHueAndControlPicker()
 {
     HuePicker.Hue = Hsv.H;
     ColourPicker.UpdateWithHSV(Hsv);
     ColourPicker.UpdateDraggerWithHSV(Hsv);
 }
 protected void UpdateControlPicker()
 {
     HuePicker.Hue = Hsv.H;
     ColourPicker.UpdateWithHSV(Hsv);
 }