Re: "modern" colors Re: Changes for emacs 28

[Eli Zaretskii]

> From: Ricardo Wurmus <rekado@elephly.net>
> Cc: spacibba@aol.com, casouri@gmail.com, emacs-devel@gnu.org, ams@gnu.org,
>  monnier@iro.umontreal.ca, ghe@sdf.org, tecosaur@gmail.com
> Date: Sun, 13 Sep 2020 21:49:24 +0200
> 
> > Then it's a mystery only you can solve.  Look at the definition of the
> > 'region' face in faces.el: the only case where we use :inverse-video
> > is on monochrome TTYs.  If that is not your case, then I don't know
> > how to explain the fact that you see the region in reverse video.  I
> > guess I'm missing something, but what?
> 
> The ’region’ face has these settings:
> 
>   DistantForeground: gtk_selection_fg_color
>          Background: gtk_selection_bg_color
> 
> I switch to a light GTK theme and run Emacs:
> 
>   $ dconf write /org/gnome/desktop/interface/gtk-theme "'Adwaita'"
>   $ emacs -Q
> 
> Now the selected region has a light gray background.
> 
> I switch to a dark GTK theme and run Emacs:
> 
>   $ dconf write /org/gnome/desktop/interface/gtk-theme "'Adwaita-dark'"
>   $ emacs -Q
> 
> Now the selected region has a very dark background and the text is
> bright.
> 
> I suppose that’s exactly what gtk_selection_bg_color and
> gtk_selection_fg_color are supposed to do: take the colours from the GTK
> theme.

Thanks for investigating.  So this explains the colors that you see,
but AFAIU, they are not exactly the default colors inverted, they just
look similar to that.  Your original description said the region was
shown in inverse video, which is what puzzled me.