In fact maybe the trace bitmap does something like this.

It should not need anything new in SVG as you could simply calculate a new path n pixels inside of the existing edge.

I think I may actually have a look at writing it, when I get some time.

HI All. I was wondering if there is anything like Illustrators "Align Stroke to Inside". Like in this tutorial. http://www.blog.spoongraphics.co.uk/tutorials/illustrator-tutorial-create-a-gang-of-vector-ninjas This image http://blogspoon.s3.amazonaws.com/wp-content/uploads/2009/vector-ninj...