Re: CSS1 and Color - infrastructure availability clarified
On Nov 30, 4:11pm, David Perrell wrote:
> Now, if only display board mfgrs would move to 'deprecate' indexed
> color and promote 24-bit as a standard. You can't have good web color
> if you're limited to a 216-color fixed palette or dithered color. At
> the very least the UA makers need to do adaptive or settable palettes.
What he said. Twice.
> Of course this presents problems with backward compatibility, since
> optimized images could look terrible on browsers limited to the NS-216
> color set.
Not so terrible, depends on the dithering method used. And not all
browsers use the NS-216 colors, including some NS ones ;-) and images which
are hacked into NS-216 rather than an adaptive palette look so poor on a
truecolor or hicolor display.
> But perhaps with a special OBJECT type an author could
> specify optimized images for those browsers that understand the type
> but fall back to standard NS-216 images for those that don't.
Sounds messy. There are proposals which use HTTP headers to indicate
aspects of the display, including color depth; the server can send the
Thankfully, NS-216 palette is still not a standard.
Chris Lilley, W3C [ http://www.w3.org/ ]
Graphics and Fonts Guy The World Wide Web Consortium
http://www.w3.org/people/chris/ INRIA, Projet W3C
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