Shall be lossless. Shall have arbitrary bitrate per channel (1 -- 24). Shall have arbitrary channels (R, G, B, A, ...). Shall work in any amount of dimensions. Better documentation describing the idea. Possibility for smaller image header, on smaller images. Runnable performance tests. Possibility to decompress arbitrary parts of the image so that any part of the image can be viewed without the need to decompress or retrieve whole file.