I have recently tried your software version 1.9. This is quite nice and thank you for providing it.
I am just trying to create some simple, mathematically defined line drawings using the SVGGraphics2D class that will be viewed in a few different contexts. I notice that the SVG output for this class uses 'rgba(r,g,b,a)' for defining color in styles. This seems to work fine in up-to-date web browsers, but some other applications (e.g. Inkscape 0.48, Gimp 2.

Thank you again
nanobaud