also convert/pngcrush png pictures with 16bit/channel (resulting in 8bit/channel) and repage their layers (as I found out that some of the pics had their layer offset the actual visual area, which makes the picture look blank in gimp)

sky = 21, 20, 38
border = 177, 175, 49
water-top = $54, $5C, $9D
water-bottom = $34, $3C, $7D
water-opacity = $80
music = City.ogg
clouds = 9