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RE: [CSS3 gcpm] CMYK colors and allowed values.

From: Ludger Buenger <ludger.buenger@realobjects.com>
Date: Fri, 31 Jul 2009 11:07:15 +0200
Message-ID: <96458C389BF1724995FFD7FAD8892637350F35@ex.nc-sb.de>
To: "W3C style mailing list" <www-style@w3.org>

David Perrell wrote:
> 
> I don't understand why the CSS spec should be concerned with
> CMYK.


I'd like to point out that we currently discuss something defined in the
gcpm module which has the specific purpose to define CSS extensions used
for paper-based publishing.


I cite from the CSS3 gcpm module introduction:

"This specification describes various functionality which is commonly
used in paper-based publishing. Some of the proposed functionality
(e.g., hyphenation and the new list style types) may also used with
other media types. However, this specification is only concerned with
the 'print' media type."


So the ability to use colors defined in CMYK is targeted specifically to
applications providing CSS driven paper-based publishing using the print
media type.


>From my understanding even browsers -while supporting the 'print' media
when printing- are unlikely to be used in "paper based publishing" and
thus have no need to support this module.


So we are not talking about "CSS spec in general" being concerned with
CMYK but only about the gcpm module.


Chris Murphy wrote:

> Using that logic, CSS3 should support YCbCr because that is a required
color space for JFIF/JPEG files.

I you find supporters to introduce a CSS module specifying CSS for
applications rendering to JFIF/JPEG, that might be an option for said
CSS module.
You might decide yourself whether you have need for such a module.
Received on Friday, 31 July 2009 09:07:51 GMT

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