[metapost] CMYK colors

[Steve Peter]

On Jun 24, 2011, at 11:09 AM, Hans Hagen wrote:

> On 24-6-2011 4:59, Steve Peter wrote:
>> 
>> On Jun 23, 2011, at 12:43 AM, Taco Hoekwater wrote:
>> 
>>> On 06/23/11 00:34, Troy Henderson wrote:
>>>> Is there a reason that when the CMYK colorspace support was added to
>>>> MetaPost that the colors "cyan", "magenta", "yellow", and "key" (or
>>>> "black") were not added as synonyms to (1,0,0,0), (0,1,0,0),
>>>> (0,0,1,0), and (0,0,0,1), respectively?
>>> 
>>> Probably because nobody thought about it. But I do not like 'key'
>>> in any case.
>> 
>> Why? That *is* what K means. http://en.wikipedia.org/wiki/Key_plate.
> 
> black can't be used as it's better to use that one for a grayscale
> 
> key is somewhat unfortunate as it's used in key/value cases, so keystone would be the alternatiev then

I'd be fine with keystone.

> personally I think that we shouldn't define cyan, magenta or yellow as one can already have them defined in rgb

But still in the cmyk colorspace? 

Steve