[csswg-drafts] [css-color] Grays

svgeesus has just created a new issue for 
https://github.com/w3c/csswg-drafts:

== [css-color] Grays ==
https://drafts.csswg.org/css-color/#grays
> As decided at San Francisco, this syntax is an alias to Lab with 
a=b=0.

This was a larger issue, but was solved at the San Francisco 2016 f2f.
 Grays are now syntactic sugar for L=gray, a=b=0.

Please view or discuss this issue at 
https://github.com/w3c/csswg-drafts/issues/290 using your GitHub 
account