[css-color] Computed value of device-cmyk()

https://dvcs.w3.org/hg/csswg/raw-file/931f8a9374a1/css-color/Overview.html#cmyk-colors 
says:
> If the user agent has information about the output device such that
> it believes it can accurately convert the CMYK color to a correct RGB
> color, the computed value of the device-cmyk() function must be that
> RGBA color. Otherwise, the computed value must be the fallback color.

Can this be a used value rather a computed value?

Unless we really intend to have the effects on the inherited value and 
getComputedStyle(), doing this kind of tweaks at computed-value-time 
adds implementation complexity needlessly. (Which as usual leads to risk 
of some implementations accidentally getting this wrong, hurting 
interop, etc.)

-- 
Simon Sapin

Received on Wednesday, 26 March 2014 22:21:34 UTC