doc-gnome-hig 2.0-3 (i386 binary) in ubuntu gutsy

 This document tells you how to create applications that look right, behave
 properly, and fit into the GNOME user interface as a whole. It is written for
 interface designers, graphic artists and software developers who will be
 creating software for the GNOME environment. Both specific advice on making
 effective use of interface elements, and the philosophy and general design
 principles behind the GNOME interface are covered.