Install ukui-desktop-environment-extras by entering the following commands in the terminal:
sudo apt update sudo apt install ukui-desktop-environment-extras
Description:
UKUI Desktop Environment (extra components, metapackage)
The UKUI Desktop Environment is the continuation of MATE. It provides an intuitive and attractive desktop environment using traditional metaphors for Linux and other Unix-like operating systems. . UKUI is under active development to add support for new technologies while preserving a traditional desktop experience. . This package installs an extra set of UKUI components that are also part of the official UKUI release.
Homepage: http://www.ukui.org/
Version: 1.1.1
Section: universe/x11