annotate for Ubuntu?

[stan]

I saw a review of Ubuntu the other day, and the reviewer mentioned a tool
called "annotate" if memory serves me correctly. This allows one to draw on
the desktop background.

apt-cache search can't seem to find this package. Am I looking in the wrong
place?

-- 
One of the main causes of the fall of the roman empire was that, lacking
zero, they had no way to indicate successful termination of their C
programs.