RE: [css-variables] Custom properties using the 'var' prefix? (Issue 1, !important)

[François REMY:]
> If you correctly remember, I was proposing the 'x' prefix beforehand but 
>Sylvain said he didn't like it, which is why I did all this research in 
>first place. If we can agree on the 'x' prefix, I would not mind at all.
> 
That someone does not like something is irrelevant; why they don't is all 
that matters. In this case, the x- prefixed was modeled after the IETF's 
X- prefix which the IETF is phasing out. I don't think we should use 
patterns others are getting rid of for good reasons, so I objected.