Like I said; the only piece of information you don't have with an ILDA file is where to dump the opaque paint. TTF is a perfect example because it is 2D vector outlines of possibly multiple closed areas, with hollow, empty areas inside. Look at these glyphs ... B8%&. And it works! Forget about guessing, make up a way to determine where it is. Make a new standard! Just make sure you take a good look at all of the standards that have preceided this one, that have anything to do with this train of thought...
and don't F*** It Up!
James.