Theme Ambiance Grey in Linux Mint
ThemesThe skin Ambiance Grey - modified version of the standard theme Ubuntu Ambiance, one developer with gnome-look.org gave it a grey shade. On the screenshot used standard icons from Linux Mint.
Installation into Linux Mint:
sudo add-apt-repository ppa:noobslab/themes
sudo apt-get update
sudo apt-get install ambiance-grey
Good Luck!!!