Adaptive Gtk+ theme based on Material Design Guidelines. Supported Desktop Environments: * GNOME-Shell >= 3.20.0 * GNOME-Flashback >= 3.20 * Cinnamon >= 3.2.0 * XFce4 >= 4.12.2 * Mate >= 1.14.0 * LXDE >= 0.99.1 (Gtk+ 2.x only)