I use Manjaro with a media PC in my living room. Since the distance to the TV is quite large I scaled the UI to double size which is working fine. The only thing I can't get to scale is the drop down user menu in Lightdm using the Lightdm-GTK-Greeter. After adding
xft-dpi = 192
to the lightdm-gtk-greeter.conf and increasing the font size to 24 everything is looking good but the user menu.
Any help to increase this font would be very much appreciated.