The theme is fully integrated and tested on many popular desktops, including Cinnamon, Mate, Xfce. It was developed for the combination with most desktop environments on GTK2/3 from the box. To change the current theme on your system, you can use standard methods or use utilities such as Ubuntu-Tweak.
Installation latest version into Linux Mint:
sudo add-apt-repository ppa:noobslab/themes sudo apt-get update sudo apt-get install stylishdark-theme