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

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: hello@paulwrankin.com,  56691@debbugs.gnu.org
> Date: Sat, 23 Jul 2022 09:41:07 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > Then how about the other suggestion I made: to add one more value to
> > outline-minor-mode-use-buttons, which will allow to differentiate
> > between editing and non-editing major modes?
> 
> Sorry, I missed that.  I think that sounds like a good idea.  Perhaps we
> could use that new buffer mode predicate machinery, and default to
> buttons on in all buffers that inherit from special-mode?  That'd allow
> people fine grained control if they want.

Sounds good.  This would also allow users to control what happens in
each of these cases, right?