Love seeing these images from the red planet, especially the intricacies of the Rover design.
The colour chart on the body is interesting, i'm speculating it's a visual indicator on UV stability of ink/paint on Mars?
@Rob77, the color charts are for white balance / color calibration for the images.
I love seeing these photos too! Living in Arizona *many* look like the deserts here, but many look more like they could be in places like Northern Africa, like the one in this article.
I remember as a child I would get the big NASA photo books from the college library (I was still in elementary school) and just scour over the then ONLY photos we had of the surface from the Viking landers. Just trying to imagine what it would look like to be standing there.
Now we get these amazing photos including blue sunsets and shots of Earth in the evening/morning skies.
Not surprisingly one of my fav books and movies is The Martian!