Color Theme Picker works with problems
After the Adobe Illustrator update (don't know if it was the last one in April 2021 or the previous one) Color Theme Picker in a new version of the Recolor Artwork tool stops working. Not only in my app but in the apps of at least 3 people - different OS, different computers. It just doesn't activate then you click the icon.
The solution was found but it was very strange - you need to open Adobe Illustrator not directly on your computer but through the Adobe Creative Cloud desktop app. Then Color Theme Picker starts working. And continues to work if you reopen the app directly.
We've found this solution by chance, 3 people tried to do this and this fixed the issue. But maybe something can be done from the side of developers to avoid such problems in the future.
Sergey Osokin commented
The problem was on macOS Ai 26.0.1. This trick helped to run Picker.
I confirm. The launch-from-CCD method works, but it seems it has to be done once... after that I tried to launch the app using different methods (double-clicking the document, launching with a shortcut), and it continued to work.
Melanie Bass Pollard commented
I'm doing a class that uses this tool and had the same problem. Your fix worked for me as well. Will let the many students know about this fix.
Eunice Ockerman commented
Thank you for sharing this. I was having this problem and your fix has done the trick.