fontconfig

font.conf

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>

  <match target="font">
    <!-- Hinting -->
    <edit name="hinting" mode="assign"><bool>false</bool></edit>
    <edit name="autohint" mode="assign"><bool>false</bool></edit>
    <edit name="hintstyle" mode="assign"><const>hintslight</const></edit>
    
    <!-- Antialias -->
    <edit name="antialias" mode="assign"><bool>true</bool></edit>
  </match>

  <!-- Default font -->
  <match>
    <edit mode="prepend" name="family">
      <string>Noto Color Emoji</string>
      <string>Noto Sans CJK JP</string>
     </edit>
  </match>

  <!-- Default sans font -->
  <match target="pattern">
    <test qual="any" name="family"><string>sans-serif</string></test>
    <edit mode="prepend" name="family">
      <string>Noto Sans CJK JP</string>
    </edit>
  </match>

  <!-- Default serif font -->
  <match target="pattern">
    <test qual="any" name="family"><string>serif</string></test>
    <edit mode="prepend" name="family">
      <string>Noto Serif</string>
    </edit>
  </match>

  <!-- Default monospace font -->
  <match target="pattern">
    <test qual="any" name="family"><string>monospace</string></test>
    <edit mode="prepend" name="family">
      <string>Noto Mono</string>
    </edit>
  </match>

</fontconfig>