[cairo] Subtractive API, part 0

[Chris Murphy]

On Jan 28, 2010, at 2:53 PM, Arjen Nienhuis wrote:
>> 
> 
> I tried scribus 1.3.5:
> 
> For cmyk(0,0,100,100) with 50% opacity it shows (slightly yellow) gray
> as I would expect.
> For cmyk(0,0,100,100) with 50% shade it shows beige.
> 
> In the PS output cmyk(0,0,100,100) with 50% opacity shows as
> cmyk(0,0,100,100) with 100% opacity.
> 
> In the PDF output cmyk(0,0,100,100) with 50% opacity appears beige on
> screen in acroread, the same as cmyk(0,0,100,100) with 50% shade. (?!)

Seems reasonable.


Chris Murphy
Color Remedies (TM)
New York, NY
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Co-author "Real World Color Management, 2nd Ed"