In the menu, go to System > Preferences > Appearance, and there is an option at the bottom left. This changes the GTK font settings.
To change the Fluxbox font settings, open ~/.fluxbox/overlay and add this line
- Code: Select all
*font: DejaVu Sans Condensed-12
Change the number and font to whatever value you want depending on how big you want the fonts.
For more details checkout the Fluxbox Wiki.
http://fluxbox-wiki.org/index.php?title=Change_font should get you started.