SVG in the browser is much more extensive than I had realised. There's really a lot you can do with it, and that kind-of snuck up on me. I've never had to touch SVG, been using canvas and DOM elements for a great many things. And now, all of a sudden, there is this massive part of the browser that I had neglected, where you can do anything.
If you work with designers that use Illustrator, you can really create a efficient workflow with SVG as a base.