Man, thank you so much for making this tool!
I miss particle dsigner so much when creating my parts in C2
(http://alertgames.net/index.php?page=s/pd2)
Keep up the good work, it looks good already!
If you don't manage to import users sprites, some simple presets with round, square, lines, could do the trick enough to be usable for production.
Thanks again, I'm very glad to see someone making a particle editor.
Will use FOR SURE if you manage to finish it!