fixed several 'retina display' images and added a bunch more (though just from upscaling the normal ones; might be nice to have 'em redrawn at a real higher resolution)
sky = 99, 51, 43
border = 70, 58, 55
water-top = $54, $5C, $9D
water-bottom = $34, $3C, $7D
water-opacity = $80
music = Freeway.ogg
clouds = 9
object = Tire, 3, 83, 215, 92, 35, 1, 0, 0, 250, 190
object = AppleSmall, 3, 40, 0, 25, 1, 1, 0, 35, 100, 65
spray = TireDirt, 2
spray = AppleDirt, 5
spray = FishDirt, 4
spray = BottleDirt, 4
flakes = 200, 1, 0, 0, 0