cairo-dock-plug-ins software package provides Set of plug-ins for Cairo-Dock, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install cairo-dock-plug-ins
cairo-dock-plug-ins is installed in your system.
Make ensure the cairo-dock-plug-ins package were installed using the commands given below,
$ sudo dpkg-query -l | grep cairo-dock-plug-ins *
You will get with cairo-dock-plug-ins package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Graphics |
| Package | cairo-dock-plug-ins |
| Version | 3.4.1-0ubuntu7 |
| Description | Set of plug-ins for Cairo-Dock |
| Sub Section | Graphics |