bug#30377: 27.0.50; Missing and misspelled SHR/CSS colors

[Tom Tromey <tom@tromey.com>]

>>>>> "Basil" == Basil L Contovounesios <contovob@tcd.ie> writes:

Basil> * lisp/textmodes/css-mode.el (css--color-map): Add fuchsia-magenta
Basil> and aqua-cyan aliases.

Thanks.  According to MDN these are the only non-grey/gray aliases.
Maybe they weren't on whatever list I started with for that reason.

Basil> In that bug report, which introduced css--color-map, Eli was referring
Basil> to the list of colours in lisp/term/tty-colors.el.  I would instead like
Basil> to draw attention to the overlap between css--color-map and
Basil> shr-color-html-colors-alist.

Yes, I wasn't aware of this list from shr.  It seems to me that shr
ought to use exactly the CSS colors, so the lists can be shared.
Though, I recommend contacting Lars before doing anything.

Basil> A (very) cursory glance through bug#25525 and lisp/net/shr-color.el
Basil> suggests there may be some further code duplication pertaining to colour
Basil> distances; is this so?

It seems so but I've mostly forgotten whatever I knew about this area.

What I do remember is checking my original algorithm against the one Eli
suggested, by comparing all the CSS named colors with their backgrounds;
and concluding that the one Eli suggested (built in to Emacs) was just
as good.  So perhaps shr is doing too much work here as well.

Tom