Attempting to log out of an LXDE session yields a dialog with the banner "Logout LXDE testing session?". It seems that that's meant to mean "LXDE desktop on a 'testing' OS" since I'm tracking jessie at the moment, but that's not how it reads at a glance. Maybe fiddling the order and using lsb_release -i to get something like "Debian LXDE session" would be less confusing?