re: [Fractdev] <Paul> Recoloring an RGB triplet-colored fractal at a later time.

Charlie wrote:

i'm somewhat aware of chunks (er, a general idea), but even if you > hack it to contain a regular png image, still you need a way to make the binary data, something like libpng api.. then, you will need to pretend it's not a grayscale to get more than 16 bits..

I was involved in the development of PNG, and reserved the fRAc chunck for fractal data. I did nothing with it because the memory demands for PNG exceeded what we could do with the DOS fractint. Now we can define it. Tim