> Cc: Dan Nicolaescu <[EMAIL PROTECTED]>, emacs-devel@gnu.org
> From: David Kastrup <[EMAIL PROTECTED]>
> Date: Wed, 06 Apr 2005 19:36:27 +0200
>
> > The R, G, and B represent single hexadecimal digits. When
> > fewer than 16 bits each are specified, they represent the
> > most-significant bits of the value (unlike the "rgb:" syn-
> > tax, in which values are scaled). For example, #3a7 is
> > the same as #3000a0007000.
> >
> > So I think the code in tty-colors.el is correct in this matter. It
> > is, however, possible that the RGB values in color-name-rgb-alist were
> > incorrectly scaled from 8-bit variants, and need to be amended.
>
> Actually, it does not make sense to scale in that way. #3a7 really
> should be the same as #3333aaaa7777, so that #fff is the same as
> #ffffffffffff, pure white.
That could be so, but:
(1) The #RRGGBB syntax being a legacy thingy, I don't believe anyone
will want to change it; and
(2) As long as X does it this way, so must we, because when Emacs
runs on X, the #RRGGBB spec is parsed by the X server, not by
Emacs (Emacs just hands the spec to X). If tty-colors.el doesn't
do _exactly_ the same, a color specified by the same #RRGGBB will
look differently in an xterm and on X.
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