bug#56691: outline-minor-mode displays navigation arrow buttons as emojis

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: luangruo@yahoo.com,  rpluim@gmail.com,  56691@debbugs.gnu.org,
>   hello@paulwrankin.com
> Date: Tue, 02 Aug 2022 13:20:47 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> I'm proposing that we should have a primitive that makes it possible to
> >> have the defaults work for most people.
> >
> > How would what I proposed miss that goal?
> 
> It would use the Symbola font on Linux when there's no emoji font
> installed (for the emojis) by default.

Yes, but is it reasonable to expect such a system?  I mean, if someone
builds an Emacs capable of displaying color Emoji, isn't it reasonable
to expect him/her to install a suitable font as well?  Color Emoji are
a "hot" feature, so I'd expect that.

Also, do distros come without a color Emoji font nowadays?  Because
Symbola AFAIK needs to be installed, it isn't by default, so if a
color Emoji font _is_ available OOTB, I think the chances for the
problems you mention are very small, and/or are easily fixed.