This is my ~/.config/fontconfig/fonts.conf
configuration file.
<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
<match target="font">
<edit name="rgba" mode="assign"><const>rgb</const></edit>
<edit name="antialias" mode="assign"><bool>true</bool></edit>
<edit name="hinting" mode="assign"><bool>true</bool></edit>
<edit name="hintstyle" mode="assign"><const>hintslight</const></edit>
<edit name="lcdfilter" mode="assign"><const>lcddefault</const></edit>
</match>
<alias>
<family>serif</family>
<prefer>
<family>DejaVu Serif</family>
<family>Bitstream Vera Serif</family>
<family>Times New Roman</family>
</prefer>
</alias>
<alias>
<family>sans-serif</family>
<prefer>
<family>DejaVu Sans</family>
<family>Ubuntu</family>
<family>Droid Sans</family>
<family>Helvetica</family>
</prefer>
</alias>
<alias>
<family>monospace</family>
<prefer>
<family>DejaVu Sans Mono</family>
<family>Inconsolata</family>
<family>Bitstream Vera Sans Mono</family>
</prefer>
</alias>
<!-- Reject bitmap fonts in favour of Truetype, Postscript, etc. -->
<selectfont>
<rejectfont>
<pattern>
<patelt name="scalable">
<bool>false</bool>
</patelt>
</pattern>
</rejectfont>
</selectfont>
<!-- Substitute truetype fonts for bitmap ones -->
<match target="font">
<edit name="prefer_outline"><bool>true</bool></edit>
</match>
<!-- Prevent Gnome from using embedded bitmaps in fonts like Calibri -->
<match target="font">
<edit name="embeddedbitmap" mode="assign"><bool>false</bool></edit>
</match>
</fontconfig>