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There should be more game engines/frameworks that support SVGs (or any other vector graphics) natively/out-of-the-box. I think indie developers should make games in the style of flash games you saw on Newgrounds. It has much more personality than pixel art and probably is much easier to do compared to hand-drawn art.
Apparently, SDL has native support for SVGs, but I haven't tried it yet.
@xianc78 being able to use vector graphics for a 2d game is hella powerful. I think that's what game maker's toolkit did with his game, but I can't remember what engine it was. Maybe unity?