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

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: larsi@gnus.org,  rpluim@gmail.com,  56691@debbugs.gnu.org,
>   hello@paulwrankin.com
> Date: Mon, 01 Aug 2022 21:47:37 +0800
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > That's what I thought we agreed to do, yes.  (But do we only support
> > Cairo with HarfBuzz?)
> 
> No, color fonts are supported under Cairo even if Emacs isn't built with
> HarfBuzz.

But we are talking about color Emoji, not just about color fonts.
Will a Cairo build without HarfBuzz support Emoji sequences?