Before I show you my seasonal OCD incarnate, let me clarify something: coloured lights on MY tree are forbidden. They, however, look fabulous on yours, and I’m not just saying that. I also didn’t put “fabulous” in italics to be sarcastic or mocking in any way, I meant it so you could hear the inflection of enthusiasm in my words. I like white lights on my tree and I like coloured lights on your tree. Unless you like white lights, too, in that case I like white lights on my tree and your tree. Either way, your tree isn’t at all stupid looking and your decorations are brilliantly accentuated by your illumination decision and it’s the prettiest tree, evah.
Summary: My tree is the only tree that I expect to abide by my rules. You go ahead and make up your own rules for your own tree. I like mine with white lights.