It's a debian build I put together for a Plex server but it's not to bad on the eyes.
To disable compositing you'll need to remove the cbpp-compositor line from your ~/.config/openbox/autostart:
(\ nitrogen --restore && \ cbpp-compositor --start && \ sleep 2s && \ tint2 \ ) &
The other commands need to stay, just remove the entire line that contains the compositor command.