How to Install the Colorblind Applet on GNOME Aug 4, 2008, 10 :00 UTC (0 Talkback[s]) (4866 reads) (Other stories by Marius Nestor)
"The following tutorial was tested on Ubuntu 8.04.1 with GNOME 2.22.3. Anyway, we are interested in the gnome-mag package version, so you should check yours right now! How? Open Synaptic (System -> Administration -> Synaptic Package Manager) and search for gnome-mag. You will see the version number on the 'Installed Version' column."