/// <summary>
/// Shows the color picker window and sets the initial color to show.
/// </summary>
/// <param name="color">Initial color to display.</param>
/// <param name="hdr">If true, the color intensity can be selected along with the color itself.</param>
/// <param name="closedCallback">Optional callback to trigger when the user selects a color or cancels out
/// of the dialog.</param>
/// <returns>A. instance of the color picker window.</returns>
public static ColorPicker Show(Color color, bool hdr = false, Action <bool, Color> closedCallback = null)
{
ColorPicker picker = new ColorPicker(color, hdr, closedCallback);
return(picker);
}