@DioniaMuscipula I do not really know if NetBeans supports dark mode because I no longer use it. But is a dark mode that important? Do you really need it? Well, I don't know why you need it, but you can check the NetBeans forum(if they have a forum, of course) and ask just the way someone suggested that to you earlier, or you can send your questions to IT support Sydney, I know they would be willing to help too. In fact, you can even email Apache NetBeans support; they would answer you too. So why will you even come here and ask when you know the probability of solving your problem is low? Lol!