Under the old Compendium Folders module, for Foundry v10 and before, I was able to have icons for each of my main compendium folders… I play Torg Eternity, so one of the realities encountered in that game is Aysle, the fantasy realm, which I’m just using for an example, here.
I used to be able to have the reality icon for Aysle in front of the Aysle folder in the compendium.
Am I still supposed to be able to set that up? I ask, because the dialog box that pops up when I right-click to edit the title of the folder, no longer has the line I need to set those icons.
Thank you for rebuilding the Compendium Folders module for v11; I am hoping to get back that functionality.
Unfortunately, these issues and the question would need to be answered by the module dev
On the bright side, the warning should not prevent use and is unrelated to the other issue you mentioned.
Support for compendium modules in Foundry evolves over time. V11 adds a new method of defining folders for new compendium modules (optional manifest attributes here Introduction to Module Development | Foundry Virtual Tabletop), but for existing compendium modules with Compendium Folders from pre-v11 such as in your case, it would need to be handled by the Compendium Folders module.