This is the Chalk development build. If you find this, you may have found a relic of the really old past. With that being said, please relax and take a look at our very humble beginnings.
There are many commands that will let you do what you want to do. The first one you should know is F11, which will exit the fullscreen. This should be your first step to debugging, finding your way or general greatness!
Production code usually yields better results in terms of FPS, however, there is reduced debugging potential
Debug code usually gives better results when tackling bugs