Comment 1 for bug 690930

Providing the arguments on the command line has drawbacks:
- there are several plugins that use aafigure in other environments
  that would need to be changed to allow these args too
- the colors would not be visible in the aafigure source image
  but in an other place

I could imagine a legend within the image itself.

The bigger issue is that shapes are currently not closed polygons, so that its not possible to simply define them as filled polygons in e.g. the SVG output... This would require some sort of optimizer pass that creates polygons from touching lines, then detect closed shapes. A bigger task...