These numbers are percentages of the original. Note that if filter is set to 0, you should be able to get away without including values for a , r , g and b . Also note that the lake will only reflect what has been drawn at the time, so in most cases you will want it to be the top layer. However, they may not stay inside that area in the current version. The current version has a set of 8 fixed colours - this may change in the next version.
All sprites consist of a series of frames, which have to be of the same size.
These have to be stored in a horizontal line next to each other on your graphic file. 1 means the image changes every time the screen is redrawn. 2 means the screen is redrawn twice before the image changes, etc. As with the stationary sprite, x , y , w and h define the dimensions of the first frame in your graphic file. A moving sprite can change direction, and has a different series of frames for each direction.