public ColorF(ColorD color)
{
red = (float)color.Red;
green = (float)color.Green;
blue = (float)color.Blue;
alpha = (float)color.Alpha;
}
public ColorB(ColorD color)
{
red = (byte)(255.0 * color.Red + 0.5);
green = (byte)(255.0 * color.Green + 0.5);
blue = (byte)(255.0 * color.Blue + 0.5);
alpha = (byte)(255.0 * color.Alpha + 0.5);
}