You have a config in Openbox, and another one in Pek.

You overwrite de gtkrc “central”, and use the config of Openbox.

You want to CHANGE the appereance of the Openbox gtk, but NOT the Pekwm config.

So, if every time you start openbox, the “central” gtkrc file is overwritten, you won’t be able to save the Openbox gtkrc file preferences, because it’s been changed in the central, but not exported to the openbox gtkrc file.

When I overwrite the ~/.gtkrc-2.0 file with the command I mentioned above, I can still use Gtk-chtheme, LXappearance or any of such apps. I don’t need to tell it which file to use, as I’ve only made sure that the ~/.gtkrc-2.0 file contains the proper theme settings for the session.

I also don’t need to copy the ~/.gtkrc-2.0 file back; there is no need to create a backup of that file, or make it overwrite the Openbox/Pekwm gtkrc file.

i didn’t try, but this way you could use gtk-chtheme without telling it which file you want to edit.