> Note though, that the oem-logo is 64x64 (I think?) in 1-bit B&W, mine
> is 100x100 in glorious 8-bit colour ;-)

Yes, I've been meaning to ask: what is the packing scheme to get full
colour into 8bpp?  Is there a fixed colourmap in use?  What is it?  Is
the colourmap encoded somewhere in image?  You did describe it as being
well over the 10000 bytes that would be necessary for a raw 100x100
8bpp image - and in fact very close to 100x100 8bpp plus a 3x256
colourmap (10768 - IIRC you said 10777).  But then you wrote of some
trivial conversion to a PPM image, and PPM is 24bpp non-colourmapped,
so I find myself a bit confused.

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