ChromeOS is a Material Design theme for GNOME/GTK based desktop environments.
Mojave Theme
Mojave is a macos Mojave like theme for GTK 3, GTK 2 and Gnome-Shell
Itimu ye-Amber
A theme for GNOME and Xfce4.
Itimu yeQogir
Qogir is a flat Design theme for GTK
Itimu ye-Stilo
Minimalistic GTK themes
Vimix Theme
Vimix is a flat Material Design theme for GTK 3, GTK 2 and Gnome-Shell which supports GTK 3 and GTK 2 based desktop environments like Gnome, Unity, Budgie, Pantheon, XFCE, Mate, etc.
EKHAYA
Matcha is a flat Design theme for GTK 3, GTK 2 and Gnome-Shell which supports GTK 3 and GTK 2 based desktop environments like Gnome, Unity, Budgie, Pantheon, XFCE, Mate, etc.
EKHAYA
EvoPop is a modern desktop theme suite.