supertux/data/images/particles/wind.sprite

(supertux-sprite
  (action
    (name "default")
	  (hitbox 0 0 63 3)
	  (loops 1)
	  (fps 15)
    (images "wind3.png"
	          "wind2.png"
			      "wind.png"
			      "wind.png"
			      "wind2.png"
			      "wind3.png")
  )
  (action
    (name "flip")
	  (hitbox 0 0 3 63)
	  (loops 1)
	  (fps 15)
    (images "windup3.png"
	          "windup2.png"
			      "windup.png"
			      "windup.png"
			      "windup2.png"
			      "windup3.png")
  )
)