Flatpak 应用中文字体问题

^{图片来源：使用 Aseprite 制作}

配置 fontconfig

请确保 Linux 下使用传统包管理器安装的软件字体符合你的预期，可参考 Linux 下的字体调校指南 配置你的 ~/.config/fontconfig/font.conf

添加权限

使用命令

flatpak override --user --filesystem="xdg-config/fontconfig:ro" your.flatpak.app

使用图形界面

安装 Flatseal，在 All Aplication -> Filesystem -> Other files 中添加 xdg-config/fontconfig:ro

font.conf 样例参考

<?xml version='1.0'?>
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
<fontconfig>
 <match target="font">
  <edit mode="assign" name="rgba">
   <const>rgb</const>
  </edit>
 </match>
 <match target="font">
  <edit mode="assign" name="hintstyle">
   <const>hintslight</const>
  </edit>
 </match>
 <!-- Map fonts that are commonly used by web pages to our preferred fonts -->
 <match target="pattern">
  <test name="family" qual="any">
   <string>Liberation Sans</string>
  </test>
  <edit binding="same" mode="assign" name="family">
   <string>sans-serif</string>
  </edit>
 </match>
 <match target="pattern">
  <test name="family" qual="any">
   <string>Liberation Mono</string>
  </test>
  <edit binding="same" mode="assign" name="family">
   <string>monospace</string>
  </edit>
 </match>
 <!-- Default font for the zh_CN locale (no fc-match pattern) -->
 <match>
  <test compare="contains" name="lang">
   <string>zh_CN</string>
  </test>
  <edit mode="prepend" name="family">
   <string>Noto Sans CJK SC</string>
  </edit>
 </match>
 <!-- Default sans-serif font -->
 <match target="pattern">
  <test name="family" qual="any">
   <string>sans-serif</string>
  </test>
  <edit binding="same" mode="prepend" name="family">
   <string>Noto Sans</string>
  </edit>
 </match>
 <!-- Default serif fonts -->
 <match target="pattern">
  <test name="family" qual="any">
   <string>serif</string>
  </test>
  <edit binding="same" mode="prepend" name="family">
   <string>Noto Serif</string>
  </edit>
 </match>
 <!-- Default monospace fonts -->
 <match target="pattern">
  <test name="family" qual="any">
   <string>monospace</string>
  </test>
  <edit binding="same" mode="prepend" name="family">
   <string>Noto Sans Mono</string>
  </edit>
 </match>
 <!-- Fallback fonts preference order -->
 <alias>
  <family>sans-serif</family>
  <prefer>
   <family>Noto Sans</family>
   <family>Noto Sans CJK SC</family>
   <family>Noto Sans CJK TC</family>
   <family>Noto Sans CJK JP</family>
   <family>Noto Sans CJK KR</family>
   <family>Noto Color Emoji</family>
   <family>Noto Emoji</family>
  </prefer>
 </alias>
 <alias>
  <family>serif</family>
  <prefer>
   <family>Noto Serif</family>
   <family>Noto Serif CJK SC</family>
   <family>Noto Serif CJK TC</family>
   <family>Noto Serif CJK JP</family>
   <family>Noto Serif CJK KR</family>
   <family>Noto Color Emoji</family>
   <family>Noto Emoji</family>
  </prefer>
 </alias>
 <alias>
  <family>monospace</family>
  <prefer>
   <family>Noto Sans Mono</family>
   <family>Noto Sans Mono CJK SC</family>
   <family>Noto Sans Mono CJK TC</family>
   <family>Noto Sans Mono CJK HK</family>
   <family>Noto Sans Mono CJK JP</family>
   <family>Noto Sans Mono CJK KR</family>
   <family>Noto Color Emoji</family>
   <family>Noto Emoji</family>
  </prefer>
 </alias>
 <selectfont>
  <rejectfont>
   <pattern>
    <patelt name="family">
     <!-- This font is causing problem with GitHub -->
     <string>Nimbus Sans</string>
    </patelt>
   </pattern>
  </rejectfont>
 </selectfont>
 <dir>~/.fonts</dir>
 <match target="font">
  <edit mode="assign" name="hinting">
   <bool>true</bool>
  </edit>
 </match>
 <match target="font">
  <edit mode="assign" name="antialias">
   <bool>true</bool>
  </edit>
 </match>
</fontconfig>

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