>>> I can't even reproduce it :-( Maybe my current font configuration helps:
<fontconfig> <match target="font"> <edit mode="assign" name="rgba"> <const>rgb</const> </edit> </match> <match target="font"> <edit mode="assign" name="hinting"> <bool>true</bool> </edit> </match> <match target="font"> <edit mode="assign" name="hintstyle"> <const>hintfull</const> </edit> </match> <match target="font"> <edit mode="assign" name="antialias"> <bool>false</bool> </edit> </match> </fontconfig> KDE settings is use system settings. I suspect it is trying to draw that particular labels with another kind of hinting or even aliased but I don't know how to debug it.

