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

[Po Lu]

Lars Ingebrigtsen <larsi@gnus.org> writes:

> Developers definitely should not include those, because it's just
> makework with no real world effect.

What kind of makework is that? Why doesn't it have a real world effect?
PBms are guaranteed to be available in all Emacs builds, including
during the bring-up of a GUI port (where it is normally not possible to
display any other images for the first few weeks), and XPMs are
guaranteed to be available in almost every other situation.  XPMs also
work on colormapped displays, which cannot be said for other color image
formats we support.

> Neither should we ignore them.

And how are we are ignoring them by defaulting to images for icons? If
the :display property is not supported by the terminal, then the text
underneath will be automatically displayed instead.