I am running Debian with KDE. Unfortunatelly some of the applications (XMMS, Winetools) have got veeery small fonts.
apt-get install gtk2-engines-gtk-qt
After that I am able to change fornts and themes for different GTK applications from KDE Control Center. It works perfectly for Firefox or Mplayer. It has created
$ cat .gtkrc-2.0
# This file was written by KDE
# You can edit it in the KDE control center, under "GTK Styles and Fonts"
font_name="Nimbus Sans L 10"
widget_class "*" style "user-font"
gtk-font-name="Nimbus Sans L 10"
unfortunatelly it completely does not work for applications: XMMS and WINETOOLS. The fonts in them are still so small. It is definetelly matter of GTK. How to make them larger?
All the best;