On Feb 18, 2011, at 9:47 AM, Graham Cox wrote: > > On 18/02/2011, at 11:40 AM, John Joyce wrote: > >> Why would whiteColor not be RGB? > > > Because it's not. It uses the NSCalibratedWhiteColorSpace, and has two > components - the gray level and alpha. > > Yes, you can make an RGB colour of white or any shade of gray, but > -whiteColor (nor -blackColor or any gray) isn't like that. > > --Graham > Good to know! Too bad it's not labeled more informatively.
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