private void SA_SelectedColorChanged(object sender, RoutedPropertyChangedEventArgs <System.Windows.Media.Color?> e)
{
if (frame != null)
{
MatrixFrame.Pixel color1 = new MatrixFrame.Pixel(SAColor1.SelectedColor.Value.R, SAColor1.SelectedColor.Value.G, SAColor1.SelectedColor.Value.B);
MatrixFrame.Pixel color2 = new MatrixFrame.Pixel(SAColor2.SelectedColor.Value.R, SAColor2.SelectedColor.Value.G, SAColor2.SelectedColor.Value.B);
frame.SetSpectrumGradient(color1, color2);
}
}