Color Management in HTML5?

I am sitting in a meeting of the ICC (International Colour Consortium) and the question about whether (or how) HTML5 address colour management issues came up. So I did a quick search of the current draft of the document and the ONLY reference I could find was that color specifications are in sRGB.  No mention about profiles in images, etc.

Is this indeed the case?  Has any consideration been given to richer color management of data (esp. images) present in HTML5 documents?

If not, is there any reason that the ICC could not present a Change Proposal to introduce requirements for UAs in this manner?

Thanks in advance,
Leonard