@interface GCColor : NSObject @property (class, readonly) BOOL supportsSecureCoding; @property (readonly) float red; @property (readonly) float green; @property (readonly) float blue; - (void)encodeWithCoder:(id)a0; - (id)description; - (id)initWithCoder:(id)a0; - (id)copyWithZone:(struct _NSZone { } *)a0; - (id)initWithRed:(float)a0 green:(float)a1 blue:(float)a2; - (id)initWithColorPreset:(long long)a0; @end