ah, bummer :D. Processing doesn't (as far as I know) have any form of size scaling, I have experimented with making my own scaling before, but didn't have time to do it for this game. Can I ask what resolution your monitor is? I believe the window should be 1000x1000 pixels, but I did see some weird sizes while testing on my laptop:)
Super glad you liked it though, I am really happy with it myself too :D