Re: Ansi-color uses the same values for fore- and background colours

[Jim Porter]

On 8/9/2023 6:28 AM, Eli Zaretskii wrote:
> > From: Tony Zorman <tonyzorman@mailbox.org>
> > Date: Wed, 09 Aug 2023 14:10:44 +0200
> >
> > by default, all of the `ansi-color-«COLOUR»' faces (defined in
> > `ansi-color.el') set the foreground and background colour to the exact
> > same value.
>
> I believe this is intentional: that's how ANSI SGR sequences work on
> terminals, right?

Yes. Emacs *could* color the foreground and background differently, but 
I don't believe it should (users are free to customize things however 
they like, of course). Every terminal emulator I'm aware of uses the 
same palette for foreground and background colors, so I think we should 
follow suit.

Instead, the goal should be to ensure a reasonable level of contrast 
between commonly-used color pairs of different foregrounds/backgrounds. 
At minimum, SGR white or black on any of the other basic colors should 
be readable.

I don't think there's a bug here.