Bisigi is an African word, referring to the notion of imagination, you can find some themes for GNOME.
GNOME is an open-source desktop environment . It is used by many GNU / Linux distributions. It provide an intuitive and attractive desktop for users. It offers many customization opportunities. Bisigi project aims to create complete and coherent themes. They are designed to be light (using gtk-engines like murrine), simple and keep the GNOME philosophy.
PPA repository have been created to make installation easier for Ubuntu users.