local.conf

<?xml version='1.0'?>
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
<fontconfig>
  <description>User font configuation</description>
  <!-- Default sans-serif font -->
  <match target="pattern">
    <test qual="any" name="family">
      <string>sans-serif</string>
    </test>
    <edit name="family" mode="prepend" binding="strong">
      <string>Ubuntu</string>
    </edit>
    <edit name="family" mode="append" binding="strong">
      <string>Vazir WOL</string>
    </edit>
    <edit name="family" mode="append" binding="strong">
      <string>Noto Color Emoji</string>
    </edit>
  </match>
  <!-- Default serif fonts -->
  <match target="pattern">
    <test qual="any" name="family">
      <string>serif</string>
    </test>
    <edit name="family" mode="prepend" binding="strong">
      <string>Ubuntu</string>
    </edit>
    <edit name="family" mode="append" binding="strong">
      <string>Vazir WOL</string>
    </edit>
    <edit name="family" mode="append" binding="strong">
      <string>Noto Color Emoji</string>
    </edit>
  </match>
  <!-- Default monospace fonts -->
  <match target="pattern">
    <test qual="any" name="family">
      <string>monospace</string>
    </test>
    <edit name="family" mode="prepend" binding="strong">
      <string>Ubuntu Mono</string>
    </edit>
    <edit name="family" mode="append" binding="strong">
      <string>Vazir Code WOL</string>
    </edit>
    <edit name="family" mode="append" binding="strong">
      <string>Noto Color Emoji</string>
    </edit>
  </match>
  <!-- Fallback fonts preference order -->
  <alias>
    <family>sans-serif</family>
    <prefer>
      <family>Ubuntu</family>
      <family>Vazir WOL</family>
      <family>Noto Color Emoji</family>
    </prefer>
  </alias>
  <alias>
    <family>serif</family>
    <prefer>
      <family>Ubuntu</family>
      <family>Vazir WOL</family>
      <family>Noto Color Emoji</family>
    </prefer>
  </alias>
  <alias>
    <family>monospace</family>
    <prefer>
      <family></family>
      <family>Ubuntu Mono</family>
      <family>Vazir Code WOL</family>
      <family>Noto Color Emoji</family>
    </prefer>
  </alias>
  <match target="font">
    <edit mode="assign" name="antialias">
      <bool>true</bool>
    </edit>
    <edit mode="assign" name="embeddedbitmap">
      <bool>true</bool>
    </edit>
    <edit mode="assign" name="hinting">
      <bool>true</bool>
    </edit>
    <edit mode="assign" name="hintstyle">
      <const>hintslight</const>
    </edit>
    <edit mode="assign" name="lcdfilter">
      <const>lcddefault</const>
    </edit>
    <edit mode="assign" name="rgba">
      <const>rgb</const>
    </edit>
  </match>
</fontconfig>