Hi. I'm using a GTK theme that sets the size of the icons on buttons to 16x16 for a nice compact appearance. It's always worked perfectly in gnome. But in xfce, some buttons don't have their icons sized properly. They're 22x22 instead (if I had to guess). What's the problem here? How do I fix it?
Fixed by changing xsettings/Gtk/IconSizes in xfconfig.
Now trying to set compiz as the default window manager (without starting xfwm4 first), but that's a different issue, and I'll do more research on my own before officially asking about it.