How to uninstall or remove gtk-theme-switch software package from Ubuntu 16.04 LTS (Xenial Xerus)

You can uninstall or removes an installed gtk-theme-switch package itself from Ubuntu 16.04 LTS (Xenial Xerus) through the terminal,

$ sudo apt-get remove gtk-theme-switch

Uninstall gtk-theme-switch including dependent package

If you would like to remove gtk-theme-switch and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove gtk-theme-switch

Use Purging gtk-theme-switch

If you use with purge options to gtk-theme-switch package all the configuration and dependent packages will be removed.

$ sudo apt-get purge gtk-theme-switch

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove gtk-theme-switch