.fonts.conf

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
    <match target="font">
        <test name="family">
            <string>ACZ 10x20 Mono</string>
        </test>
        <test name="size" qual="any" compare="EQ">
             <double>13</double>
        </test>
        <edit name="antialias" mode="assign">
            <bool>false</bool>
        </edit>
    </match>
</fontconfig>