[Setools] Rendering for Mondrian

[Hans N Beck]

Hi,

asking Bert Freudenberg for Balloon2D it comes out, that Balloon2D  
would be an interesting way to render the visualizations, because of  
Anti-Aliasing and a little bit more abstract interface for the  
rendering layer (roughly spoken Balloon2D would be nearer to VW  
HotDraw than plain Morphic)

What would you guys think ?

Regards

Hans