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After they made Scrounge, I decided I needed to make a Spanner. But the damn guy didn't even have so much as a single robot mode image ever, so I basically had to make up a color layout for him. I figured white, gray and black was good enough for the monochromatic appearance he received.
I did come up with a tortured half bridge robot mode before I painted him, and I figure the shuttle mode that can "span" space would be a good fit with Scrounge who's a UFO now.