Rome is a 2D rendering framework made available by VPRI under MIT license:

	http://www.squeaksource.com/Rome.html

The primary backend for Rome is a plugin using Cairo 
(http://cairographics.org), additionally there is a reference 
implementation completely in Smalltalk, and one using the Balloon2D engine.

Rome is currently used in the TinLizzie and Sophie projects.

- Bert -