I eventually got tired of ugly fonts, and decided to install a few fonts.
After searching a bit and not finding a copy-paste-enter solution, I decided to install some fonts from Google Fonts. Browsing through the catalog, I got confused by all the choices I had in front of me, so I did what a 5 year old would do when faced with more than one option : Choose them all.

cd /tmp
wget -O master.zip https://github.com/google/fonts/archive/master.zip
unzip master.zip -d google-fonts
rm master.zip
cd google-fonts
find -type f -name "*.ttf" -exec sudo cp -- "{}" /usr/local/share/fonts \;
cd /usr/local/share/fonts
sudo mkfontscale
sudo mkfontdir
fc-cache -f -v
rm -rf /tmp/google-fonts