Hi Dev Team, ran my game yesterday evening and had issues using the Square/rectangle shape Reveal tool. Didn't work, sometimes left a yellow rectangle without revealing or disappearing. Just at the time my players were getting in The Caves of Chaos. RElaunching the app didn't do anything. Finally I found out the Reveal Polygonal tool was working, so I used this instead. Can't really tell if it was related to zoom or size of the map though. Using Firefox 19.0.2 on Imac 10.6.8 and via Google+. Any known persistent bugs regarding this ? I would gladly susbscribe to Dynamic Light tosolve this and improve the game but don't play that often yet. Will think about it though... ;-)