Some emoji doesn't display properly

[jkriegshauser]

What were you doing?

Certain emoji (in particular i noticed this with "☁️") does not display properly on the Chromium that comes with FullPageOS, though other emoji does.

What did you expect to happen?

The page as viewed from Chrome running on Windows:

Some emojis are fine:

What happened instead?

The page as viewed from Chromium on FullPageOS:

Note that the cloud emoji is not colored.

The house emoji (🏠) is fine:

Was there an error message displayed? What did it say?

No.

Version of FullPageOS?

[Can be found in /etc/fullpageos_version ALWAYS INCLUDE.]

0.13.0

Screenshot(s) showing the problem:

[If applicable. Always include if unsure or reporting UI issues.]

See above.

If you are building FullPageOS - provide a build.log that is created for the build

Downloaded stable image.

I also tried installing:

sudo apt install fonts-noto-color-emoji

and restarted, to no avail

[jkriegshauser]

I was able to fix it by loosely following this page, though it has some errors.

What worked:
Install the font:

sudo apt install fonts-noto-color-emoji

Create ~/.config/fontconfig/fonts.conf with the following (note that the page above is missing <fontconfig>)

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
 <match>
  <test name="family"><string>sans-serif</string></test>
  <edit name="family" mode="prepend" binding="strong">
   <string>Noto Color Emoji</string>
  </edit>
 </match>

 <match>
  <test name="family"><string>serif</string></test>
  <edit name="family" mode="prepend" binding="strong">
   <string>Noto Color Emoji</string>
  </edit>
 </match>

 <match>
  <test name="family"><string>Apple Color Emoji</string></test>
  <edit name="family" mode="prepend" binding="strong">
   <string>Noto Color Emoji</string>
  </edit>
 </match>
</fontconfig>

(Note: if fontconfig exists [it didn't on my install] then more finesse will be required here)

Flush the font cache with:

fc-cache -f -v

Reboot or load the page and it shows the proper cloud emoji:

[guysoft]

Hey, if you can post your full working ~/.config/fontconfig/fonts.conf I could add a fix for this.

[jkriegshauser]

@guysoft Thanks, it’s posted in full above

[SecularSteve]

If I may make a suggestion, OpenMoji recently got a full update to the Unicode 15 standard:

https://github.com/hfg-gmuend/openmoji/releases/tag/15.0.0

I personally think it would be handy to implement it as the default Emoji setting that comes built-in with the system.
Could double as a fall-back in case of further errors like these.

[guysoft]

@SecularSteve Thanks for the tip:
Related, this is what we do now: #378

[guysoft]

Nightly build are working again.

@jkriegshauser If I make a build with a fix for it could you test it?

[jkriegshauser]

@guysoft Sure

[guysoft]

didn't forget, I want to fix the username bug first (#525)

[guysoft]

Didn't forget, but I am really really swamped.