dotfiles/fonts/.config/fontconfig/fonts.conf

<?xml version='1.0'?>
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
<fontconfig>
 <match target="font">
  <edit name="hinting" mode="assign">
   <bool>true</bool>
  </edit>

  <edit name="hintstyle" mode="assign">
   <const>hintfull</const>
  </edit>

  <edit name="antialias" mode="assign">
   <bool>true</bool>
  </edit>

  <edit name="rgba" mode="assign">
    <const>rgb</const>
  </edit>

  <edit name="lcdfilter" mode="assign">
    <const>lcddefault</const>
  </edit>
 </match>

 <dir>~/.fonts</dir>

 <match target="pattern">
   <test qual="any" name="family">
     <string>sans-serif</string>
   </test>

   <edit name="family" mode="prepend" binding="strong">
     <string>Ubuntu</string>
   </edit>
 </match>
</fontconfig>