System/Library/PrivateFrameworks/SeymourUI.framework
SMUCompositing.h
@interface SMUCompositing : NSObject
+ (id)kCAFilterColorBurnBlendMode;
+ (id)kCAFilterPlusD;
+ (id)kCAFilterPlusL;
+ (id)kCAFilterScreenBlendMode;
+ (id)kCAFilterSourceAtop;
@end