the issue has nothing to do with gnome-session, likely either gnome- panel rendering or the icon libreoffice provides
** No longer affects: gnome-session (Ubuntu) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/923932 Title: LibreOffice icons classic Status in “libreoffice” package in Ubuntu: New Bug description: When using gnome-session-fallback (GNOME Classic session / gnome- panel) then LibreOffice icons are much larger image dimensions than the other icons in the menu. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/923932/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

