They also put color calibration charts on Mars rovers. For example https://www.lucideon.com/news/colour-standards-on-mars
One of the great gifts Pillinger² had was being able to shake up public interest via pop culture; there was also call sign by Blur for Beagle 2.
¹ https://www.researchgate.net/figure/Spot-Painting-Beagle-2-C...