supertux/data/images/tilesets/grey.stgt

;SuperTux-Tile-Definition
(supertux-tiles
  (properties 
        (id 4))
  (tile (id 1)
        (images "grey.png")
	(solid #t))
  (tile (id 2)
        (images "grey2.png")
	(solid #t))
  (tile (id 3)
        (images "grey3.png")
	(solid #t))
  (tile (id 4)
        (images "grey4.png")
	(solid #t))
  (tile (id 5)
        (images "grey5.png")
	(solid #t))
  (tile (id 6)
        (images "grey6.png")
	(solid #t))
	)