Circle-style and minimalist icons
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.
I-Papirus Icons
Minimalist icons created with the flat-desing technique, utilizing washed out colors and always accompanied by white.
Izimpawu Zephepha
Paper is a modern freedesktop icon theme whose design is based around the use of bold colours and simple geometric shapes to compose icons.
I-Papirus Icons
I-Papirus Icons
I-Papirus Icons
Flat Remix ICON theme is a pretty simple Linux icon theme inspired on material design.