Install the following for Openbox & obmenu-generator:
sudo apt-get install cpanminus git && git clone git://github.com/trizen/obmenu-generator && sudo cp obmenu-generator/obmenu-generator /usr/bin && mkdir .config/obmenu-generator && sudo cp -r obmenu-generator/schema.pl ~/.config/obmenu-generator/ && sudo cpanm Linux::DesktopFiles && sudo cpanm Data::Dump && sudo chmod +x /usr/bin/obmenu-generator && obmenu-generator -p -i