Derivatives that are recognized but not supported by Canonical are PERSON@1 , a `` lightweight '' distribution based on the Xfce desktop environment instead of GNOME , designed to run better on low-specification computers .

Derivatives that are recognized but not supported by Canonical are : Xubuntu , a `` lightweight '' distribution based on the Xfce desktop environment instead of GNOME , designed to run better on low-specification computers .
