Thank you everyone for sharing details and patches to make the module D10 com...

Thank you everyone for sharing details and patches to make the module D10 compatible. I will try to have a look this weekend and try to resolve this and bring a new release for D10. Also, this issue seems duplicate of https://www.drupal.org/project/colorpalette/issues/3358837.

And thank you @pgrandeg for showing interest in maintaining this project, I am not sure how would this request https://www.drupal.org/project/projectownership/issues/3381391 of yours would take in effect, but I have assigned you as a maintainer, I hope you would be able to maintain this project from now on.