This protocol declares an interface for classes to conform to provide custom color pickers for the color-picker panel. This protocol is used closely with the NSColorPickingDefault protocol, which declares the basic interface for color pickers. The most straightforward way to create a custom color picker for your application is to subclass NSColorPicker, and implement the methods of this protocol in your subclass.

@protocol NSColorPickingCustom
// Instance Methods
- (BOOL)supportsMode:(int)mode;
- (int)currentMode;
- (NSView *)provideNewView:(BOOL)initialRequest;
- (void)setColor:(NSColor *)newColor;
@end