Re: [css4-images] Add format() hints to image()

Liam R E Quin skriver:
> On Tue, 2013-02-19 at 16:16 +0000, Jake Archibald wrote:
>> The proposed system would allow for, eg, format('webp-progressive'),
>> format('jpeg-smellovision').
> 
> How about, format('image/jpeg', 'smellovision') ?
> 

That still leaves some problems: who decides which subfeatures should be
queryable? Who will manage the list of them? Can we even assume that
implementors even have the ability to know which subfeatures they
themself support?