bug#56820: outline-minor-mode replacing the first character with an arrow

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: jporterbugs@gmail.com,  juri@linkov.net,  yilkalargawworkneh@gmail.com,
>   56820@debbugs.gnu.org
> Date: Thu, 08 Sep 2022 15:40:39 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > Why bother, since we already have the margins, where that is possible?
> 
> Hm.  Could we do away with the fringes and just use the margins, long
> term?

Depends for what purposes.  The fringes generally take less space for
small enough images, and "other editors" provide similar features,
including for breakpoint markers.

My point is that if some Lisp program needs to display something
larger and more complex than a simple small image the fringes can
support, that Lisp program should simply use margins instead.