The first image in CNN"s New images show Mars as you've never seen it before shows a partial "selfie" by the Curiosity rover which includes what looks like two images on the rover itself.
The one on the left appears to be a line drawing of itself, and the one on the right might be an abstraction of that, or a QR code, or something else. For similar looking 5x5 and 6x6 "space QR-codes" see answers to Have “QR” or other 2D barcodes been used in spaceflight?
However that image also looks to me like an abstraction of Curiosity's outline, with the bottom squares illustrating the rover's Rocker-bogie mounted wheels and the "T" on top representing the rover's MastCam.
Question: Why does Curiosity have (at least) two images of itself on itself, or is one a QR-code?