qubes-linux-template-builder/scripts_debian/qubes-files/etc/xdg/fonts.conf

<?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="hinting">
      <bool>true</bool>
    </edit>
  </match>
  <match target="font" >
    <edit mode="assign" name="hintstyle">
      <const>hintslight</const>
    </edit>
  </match>
  <match target="font" >
    <edit mode="assign" name="antialias">
      <bool>true</bool>
    </edit>
  </match>
  <match target="font" >
    <edit mode="assign" name="lcdfilter">
      <const>lcddefault</const>
    </edit>
  </match>
</fontconfig>