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> Using imagemagick on the command line I was able to combine the images into a GIF. man what a cop out, I was hoping they would use a text editor to build the gif. that would be way harder.
Yeah I was expecting somebody to build a gif by hand from the spec using ed.
As for imagemagick, you could make this harder by: a) Parsing the PNG structure of every image (4-byte length, 4-byte type, data, and 4-byte CRC). b) Decompress and unfilter the pixel data c) Convert data to indexed color and quantize down to <= 256 colors if needed d) Write the GIF container e) LZW-encode the pixel indices