[mythtv-users] How do you adjust font sizes?

[ffrr]

All my fonts look too big, and they don't fit well, especially in places 
like the program guide where parts of the channel names are missing.  I 
am using the default blue theme.  I tried changing font size in the 
first page of the 'Appearance' settings, and I also tried reducing the 
font sizes on the QT page (about 5 screens into the 'Appearance' 
settings) - also my Qt style is set to Desktop Style.

Nothing seems to make much difference.

How is it supposed to work?