Reject Bland fonts in Ubuntu

.fonts.conf

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
    <include ignore_missing="yes">/absolute/path/to/select.conf</include>
</fontconfig>

select.conf

<?xml version="1.0"?>
<fontconfig>
  <selectfont>
    <rejectfont>
      <pattern>
        <patelt name="family">
          <string>Liberation Serif</string>
        </patelt>
      </pattern>
      <pattern>
        <patelt name="family">
          <string>Liberation Mono</string>
        </patelt>
      </pattern>
      <pattern>
        <patelt name="family">
          <string>Nimbus Mono L</string>
        </patelt>
      </pattern>
      <pattern>
        <patelt name="family">
          <string>Liberation Sans Narrow</string>
        </patelt>
      </pattern>
      <pattern>
        <patelt name="family">
          <string>Nimbus Roman No9 L</string>
        </patelt>
      </pattern>
      <pattern>
        <patelt name="family">
          <string>Liberation Sans</string>
        </patelt>
      </pattern>
      <pattern>
        <patelt name="family">
          <string>Nimbus Sans L</string>
        </patelt>
      </pattern>
    </rejectfont>
  </selectfont>
</fontconfig>