On 13/07/2022 18:05, Bruno Voisin via XeTeX wrote:
If anybody wishes to take on that task, here's another possible item for the
todo list: the support of colour emoji fonts.
I have not tried with other emoji fonts, but Apple's font (Apple Color
Emoji.ttc in macOS) is supported by LuaHBTeX in Harf mode, but not XeTeX.
Overleaf has a very nice technical article on TeX's support of emojis
https://www.overleaf.com/learn/latex/Articles/An_overview_of_technologies_supporting_the_use_of_colour_emoji_fonts_in_LaTeX
discussing in detail why XeTeX doesn't support them (ie lack of support of
raster-based OpenType colour fonts).
It would be nice if somebody were able to overcome that obstacle.
May I /very/ respectfully suggest that while support for colour emoji
fonts may well be of interest to some, it would be more in the spirit of
TeX to invest that effort into attempting to support the technology that
underlies Zapfino Ink <https://tug.org/TUGboat/tb28-2/tb89hagen.pdf>.
--
/Philip Taylor/
