Lubuntu Software Center? Another light newbie-friendly app catalogue / installer? Maybe... Just don't forget we have a much more powerful Synaptic :)
By the way, does it: http://packages.ubuntu.com/trusty/lubuntu-software-center work correctly with a Debian version of app-install-data: http://packages.qa.debian.org/a/app-install-data.html // Ubuntu version: http://packages.ubuntu.com/source/trusty/app-install-data-ubuntu ? ---- Best wishes, Bob