It looks like it's highlighting Ile St Marie - an island off of Madagascar. It was reportedly home to a pirate colony called Libertatia - http://en.wikipedia.org/wiki/Libertati... » 11/14/13 11:45pm 11/14/13 11:45pm

The colony's motto was "For God and Liberty" as seen on the map. Pretty safe to assume this is at least part of the game's focus. » 11/14/13 11:45pm 11/14/13 11:45pm