The Wikipedia article is far more informative, though I'm uncertain if read the full dpreview article due to ad-induced nausea.
lol, made me chuckle.
Tip:
1. install "uBlock Origin", and configure it to "Medium Mode" [1]
2. Install "Obsidian Web Clipper" and use the "Reading View" button to read articles [2]
Trust me, you'll love it.
[1] https://github.com/gorhill/uBlock/wiki/Blocking-mode#medium-...
[2] https://addons.mozilla.org/en-US/firefox/addon/web-clipper-o...
The Viking Mars Lander had an early colour chart (three times over, for some reason) as shown in this NASA photo: https://www.msss.com/mars/pictures/viking_lander/22a158corr....