[Bug 2025651] Re: default Japanese font in snap apps is ugly

[Gunnar Hjalmarsson]

Additional observation:

If I refresh into FF latest/stable, the undesired line

<include ignore_missing="yes">/etc/fonts/conf.d</include>

gets written into ~/snap/firefox/current/.config/fontconfig/fonts.conf.
I suppose the reason is that the snap from that channel is linked to
gnome-3-38-2004 which has not (yet) been updated in this respect.

Consequently the fix of this bug will reach all users only after:

1. the change of gnome-42-2204 has made it to latest/stable, and

2. the FF snap in latest/stable/ubuntu-23.04 is updated to a new
revision.

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https://bugs.launchpad.net/bugs/2025651

Title:
  default Japanese font in snap apps is ugly

Status in Snappy:
  Fix Committed
Status in language-selector package in Ubuntu:
  Invalid

Bug description:
  Japanese fonts in snap packages such as Firefox use glyphs from
  Chinese fonts. non-snap packages are fine.

  This is derived from the following ticket:
  https://bugs.launchpad.net/ubuntu/+source/fontconfig/+bug/2017076

  How to reproduce:

  1. Install lunar or mantic with Japanese language pack
  2. Enable Japanese locale
  3. Start Firefox
  4. Type or Copy "刃" to address field and type enter
  5. Check glyph of "刃"

  Expected result:
  The following Japanese glyph is displayed:
  https://glyphwiki.org/wiki/u5203

  Actual result:
  The following Chinese? glyph is displayed:
  https://glyphwiki.org/wiki/zihai-018904

  Others:

  * Ubuntu 22.04 LTS not affected, works fine.
  * Fixed if you remove fonts-droid-fallback package.

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