Returns a Boolean value indicating whether the view is being drawn to an environment that supports color.
- macOS 10.0–10.10Deprecated
true if the view’s window supports color drawing or
false if it does not.
A view object can base its drawing behavior on the return value of this method to improve its appearance in grayscale windows. This method might return
false when the view’s window does not store color information because the content is destined for a grayscale printer.