Since Unity won't be a reality (at least in the way many people saw it), enjoy it's graphic design in the shape of a Unity, Cinnamon and GTK 3 theme (Gnome-Shell theme coming soon)
- Gtk3 theme as seen in the (rare) screenshots of unity showing various widgets
- Unity 7 theme
- Cinnamon theme with vertical panel support: make your desktop look and feel like unity 8!
Recommended icon theme: Square Light (noobslab)