Orion is a light GTK3 theme compatible with GTK 3.2, it uses Unico theming engine. Also, it comes with GTK2 theme, metacity, Unity and Orion Xfce theme. Orion theme designed by “satya164″. Check this installation instruction for Orion GTK3 theme on Ubuntu 11.10 Oneiric Ocelot and Ubuntu 12.04 LTS Precise Pangolin Using PPA. Continue reading →