#import <QuartzCore/CIColor.h>
@implementation CIColor
/*colorWithRed:green:blue:alpha:

Creates a color object using the specified RGBA color component values.

+ (CIColor *)colorWithRed:(float)r green:(float)g blue:(float)b alpha:(float)a
Parameters
r

The value of the red component.
g

The value of the green component.
b

The value of the blue component.
a

The value of the alpha component.
Return Value

A Core Image color object that represents an RGB color in the color space specified by the Quartz 2D constant kCGColorSpaceGenericRGB and an alpha value.
Availability
Mac OS X v10.4 and later.*/
+ (CIColor *)colorWithRed:(float)r green:(float)g blue:(float)b alpha:(float)a{}

@end