Board Thread:News and Announcements/@comment-21547349-20150826152644/@comment-7326455-20150828060152

I was taking it to be water, personally. The air is represented by clouds. Might be clearer when we have more pieces.

That said, the piece in the left-hand column of the grid one down from the top appears to have two tiny letters written on the side of the island. Not completely sure what they mean.