mate-desktop-environment-extra 1.20.0+3ubuntu1 (amd64 binary) in ubuntu bionic

 The MATE Desktop Environment is the continuation of GNOME 2. It provides an
 intuitive and attractive desktop environment using traditional metaphors for
 Linux and other Unix-like operating systems.
 .
 MATE is under active development to add support for new technologies while
 preserving a traditional desktop experience.
 .
 This package (mate-desktop-environment-extra) is a dummy package and can be
 safely removed.