bug#7943: white background is color #e5e5e5 in terminal window

[Eli Zaretskii]

> From: "Drew Adams" <drew.adams@oracle.com>
> Cc: <7943@debbugs.gnu.org>
> Date: Sat, 12 Mar 2011 12:18:54 -0800
> 
> >       ("white"          7 (229 229 229))    ; gray90
> >       ("brightwhite"   15 (255 255 255)))   ; white
> > 
> > As you see, what is called "white" in list-colors-display is actually
> > gray90....  This definition is used to leave FFFFFF for brightwhite
> 
> Wow.  I won't presume to suggest that this is misguided, but I can't help but
> wonder why.  Why wouldn't white be called "white" and gray90 be called 
> "gray90"
> or "off-white" or some such?

For compatibility with 8-color text terminals that cannot produce the
bright colors, IIRC.

Some text terminals can produce bright white by combining white with
another text attribute (bold, if I'm not mistaken).  Having 8-color
terminals without "white" would be confusing.

We do use "gray" on terminals that don't have this historical
precedent, see w32console.el, for example.