Woah, nifty! You're making some really cool resources!
Now if only I could get started on an actual game.
Out of curiosity, how many bytes was your tiger?
Around 17k uncompressed (original svg was over 100k). It is pretty nasty, the paths are insanely complex.
There is still a bit of redundancy I could get rid of. Also you really don't need 9 bits of precision, smaller sprites only need 6 or 7. The converter isn't very magic, only path elements are supported so you generally have to edit them in Inkscape a bit to clean up any unsupported features.