I thought I had that implemented, but maybe it was something I planned to add, it's been a while since I looked at the calling code but I'll take a look.
Resolution issue is the first thing I plan to fix. When I originally made it I was planning on making it a mobile app. I learned I could post the game to the web instead so I just tossed it up with zero changes to the code.
A temp fix to that may allow you to play on Mac is to set the game to full screen.
