There isn’t much theme development going on now a days for latest Ubuntu version like it used to in past, we had so many themes to choose from for our beloved desktop but it is quite unfortunate. Hopefully creators will jump in eyecandy pool once again and give us those great themes taste we used to have for our Linux desktops. But there are still some people who are giving their free time to Linux eyecandy and we must appreciate them.
Chrome OS theme is basically material designed GTK theme with flat and elegant colors, it has two variants Chrome OS variant and Android OS variant but looks great on Ubuntu 16.10 and 16.04, it can also work on Linux Mint 18 desktop. It offers theme for Unity, Gnome Shell, Cinnamon, Xfce that means all major desktops are covered. If you find any kind of bug or issue within this theme then report it to creator via linked page. Obsidian-1 icons used in the following screenshots. You can use Unity Tweak Tool, Gnome-tweak-tool.