Thanks Jairo,

That indeed works, should've read that it is bitmap only.

I do get a white background though (MKIV), is that how the bitmap is stored?

\definefontfeature[Emoji][default][sbix=yes]

\starttext

\framed[background=color,background=black]{\definedfont[file:NotoColorEmoji.ttf*Emoji]\char"1F91D}

\stoptext


In Hans' example for applecoloremoji there is no white background (page 5,
bachotex-2017-emoji.pdf).

I also do not get a white background with LibreOfiice.


Adam

On Fri, May 14, 2021 at 12:51 AM Jairo A. del Rio <jairoadelrio6@gmail.com>
wrote:

> In ConTeXt LMTX this works just fine (try mtxrun --generate and context
> --make first):
>
> \definefontfeature[Emoji][default][sbix=yes]
>
> \starttext
>
> \definedfont[file:NotoColorEmoji.ttf*Emoji]\char"1F91D
>
> \stoptext
>
> However, when one tries to convert it with ImageMagick the following
> happens:
>
>    **** Error reading a content stream. The page may be incomplete.
>                Output may be incorrect.
>    **** Error: Ignoring spurious ET operator.
>                Output may be incorrect.
>    **** Error: File did not complete the page properly and may be damaged.
>                Output may be incorrect.
>
>
> Only SVG fonts don't trigger this error in LMTX.
>
>
> I confirm ConTeXt MkIV is having issues with emoji fonts. It seems that
> GraphicsMagick is not properly generating images as it complains about an
> improper header.
>
> Jairo
>
> El jue, 13 de may. de 2021 a la(s) 18:26, Adam Reviczky (
> reviczky@gmail.com) escribió:
>
>> Hi,
>>
>> I am trying to use the 'handshake' character (
>> https://www.fileformat.info/info/unicode/char/1f91d/fontsupport.htm)
>> from the Noto Color Emoji font (
>> https://github.com/googlefonts/noto-emoji/blob/main/fonts/NotoColorEmoji.ttf
>> ).
>>
>> The following MWE gives an error:
>>
>> \starttext
>>
>> \definedfont[file:NotoColorEmoji.ttf] \char"1F91D
>>
>> \stoptext
>>
>> fonts           > otf loading > loading 'NotoColorEmoji.ttf', hash
>> 'notocoloremoji'
>> system          > lua > compiling
>> '/home/ubuntu/.texlive2020/texmf-var/luatex-cache/context/b47c3d3cee7cb6c86268d0595268c442/fonts/png/notocoloremoji.tma'
>> into
>> '/home/ubuntu/.texlive2020/texmf-var/luatex-cache/context/b47c3d3cee7cb6c86268d0595268c442/fonts/png/notocoloremoji.tmc'
>> system          > lua > dumping
>> '/home/ubuntu/.texlive2020/texmf-var/luatex-cache/context/b47c3d3cee7cb6c86268d0595268c442/fonts/png/notocoloremoji.tma'
>> into
>> '/home/ubuntu/.texlive2020/texmf-var/luatex-cache/context/b47c3d3cee7cb6c86268d0595268c442/fonts/png/notocoloremoji.tmc'
>> stripped
>> fonts           > otf loading > loading done
>> fonts           > otf loading > saving 'NotoColorEmoji.ttf' in cache
>> system          > lua > compiling
>> '/home/ubuntu/.texlive2020/texmf-var/luatex-cache/context/b47c3d3cee7cb6c86268d0595268c442/fonts/otl/notocoloremoji.tma'
>> into
>> '/home/ubuntu/.texlive2020/texmf-var/luatex-cache/context/b47c3d3cee7cb6c86268d0595268c442/fonts/otl/notocoloremoji.tmc'
>> system          > lua > dumping
>> '/home/ubuntu/.texlive2020/texmf-var/luatex-cache/context/b47c3d3cee7cb6c86268d0595268c442/fonts/otl/notocoloremoji.tma'
>> into
>> '/home/ubuntu/.texlive2020/texmf-var/luatex-cache/context/b47c3d3cee7cb6c86268d0595268c442/fonts/otl/notocoloremoji.tmc'
>> stripped
>> fonts           > otf loading > loading, optimizing, packing and caching
>> time 2.557
>> pages           > flushing realpage 1, userpage 1, subpage 1
>> close source    > level 2, order 3, name '/tmp/MWE.tex'
>> close source    > level 1, order 3, name
>> '/usr/share/texmf/tex/context/base/mkiv/cont-yes.mkiv'
>> ! error:  (file NotoColorEmoji.ttf) (ttf): loca table not
>> foundmtx-context     | fatal error: return code: 256
>>
>> Any idea what is wrong?
>>
>> Adam
>>
>>
>> ___________________________________________________________________________________
>> If your question is of interest to others as well, please add an entry to
>> the Wiki!
>>
>> maillist : ntg-context@ntg.nl /
>> http://www.ntg.nl/mailman/listinfo/ntg-context
>> webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
>> archive  : https://bitbucket.org/phg/context-mirror/commits/
>> wiki     : http://contextgarden.net
>>
>> ___________________________________________________________________________________
>>
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to
> the Wiki!
>
> maillist : ntg-context@ntg.nl /
> http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
> archive  : https://bitbucket.org/phg/context-mirror/commits/
> wiki     : http://contextgarden.net
>
> ___________________________________________________________________________________
>