Yes, most of the icons are simple polygons. There are only a few that aren't, and I've either taken care of cleaning up those (the various globe iterations), or the existing SVG's are already fairly concise.
I still need to explore the "arc" controls in SVG. All of the examples I can find immediately launch into creating things like Bézier curves, when all I need are just portions of a circle.
I also have trouble remembering that in SVG, the zero-origin of the Y-axis is at the top.
