Years ago, dark nail polish was great - if you wanted to dress up like Elvira for Halloween. But over the years, beauty has evolved, and black is, well, the new black. There are actually a slew of dark nail polish colors that are currently in style. So don't be afraid of the dark. In November, OPI will introduce a Muppet-inspired line, which includes Gone Gonzo, a glittery icy blue shade that's the perfect complement for pale skin. Other colors in the full line include: Animal-istic (wild bright red), Wocka Wocka (deep berry), Meep-Meep-Meep (fuchsia) and Getting Miss Piggy With It (glittery red).