I'm hoping to get some information about how that file is organized from some of you expert themers who have figured it out.

I believe that the closest corresponding resource id from extras.rsrc is 2820. I also believe that I've determined the starting and ending offsets of the affected part of the file.

Can you tell me how many data ranges of color table data and bitmap data the startup progress data portion consists of, and image sizes involved? Could you be persuaded to furnish me with the offset specifications for whatever range(s) of image data are involved?

Perhaps you would be interested in my Bootimage Pal applet for quickly converting bootimages between tiff file and data components:

http://lonestar.utsa.edu/llee/apple...otimagepal.html

Any help will be greatly appreciated. Thanks!