Cool to see progress on SVG!
I wanted to use SVG few days ago and ran into some issues...
Firstly arc isn't supported (A/a), this can be remedied with bezier, but still.
Secondly (and for my needs more importantly) RTResizeable (RTResizable) doesn't work with SVG.
I saw that RTSVGPath supports scale:, so maybe extent: could internally call scale: so it is uniform with other elements?
I would much rather use SVG; now I have to make custom Trachel shapes and draw with Athens, or make crazy shape compositions.
Peter