At the request of many of our readers, we decided to write the following tutorial to teach Ubuntu users how to install the very popular and gorgeous Arc GTK theme in the latest Ubuntu 16.04 LTS (Xenial Xerus) operating system. First of all, we would like to take a moment and say that it has been a year since we first introduced you, guys, to the Arc GTK theme. During this time, it became one of the most requested and loved Linux desktop themes, adopted lately by numerous GNU/Linux operating systems, including the upcoming Linux Mint 18 "Sarah." Now that Ubuntu 16.04 LTS is out and it began invading users' computers as the latest, most advanced and reliable Ubuntu release ever, many of you want to fully customize it with third-party GTK and ...