Since Xfce4 breaks things within major release updates, I don't use Xfce4 anymore. AFAIK Xfce4 still claims to be GTK2, but I suspect themes likely already got broken by preparation to switch to GTK3. I might be mistaken. $ pacman -Si chromium | grep Depe Depends On : gtk2 [snip] You could test if ~/.gtkrc-2.0 does solve this issue. gtk-xft-antialias = gtk-xft-hinting = gtk-xft-hintstyle = gtk-xft-rgba = Even while Firefox also depends on GTK2 and the gtkrc either way might not work when running Xfce4. $ pacman -Si firefox | grep Depe Depends On : gtk2 [snip] I use openbox with .gtkrc-2.0, .config/gtk-3.0/settings.ini and I suspect qtconfig-qt3 and/or qtconfig-qt4 settings are stored in .config/Trolltech.conf. However, fonts and themes are a mess on my machine, even when I chose equal fonts and equal font sizes, it doesn't result in really equal fonts. -- It only looks like a tape-recorder. It's actually a pen. So you can write with it and no one will know.