CSS Change username color for entire Custom Groups, works sometimes then doesn't?

Thank you for letting me know, I feel slightly less stupid that I somehow broke something trying to fix something else as is often the case! I’ve played around with a few different cases and they all work fine and I’ve been able to work it out with this information.

Does it require the use of GitHub - discourse/discourse-groups-css-classes-in-body · GitHub to still use custom Primary Groups in this fashion I was asking about, or is it unnecessary? I possibly misunderstood the purpose of that plugin in the first place and it was never required for what I was doing; I just removed it from my test theme to see if the custom primary group codes were still trigger, and they do, so it seems like it’s not needed…but I would rather be sure before I just turn it off and find something unexpected down the road.