While I normal advocate fixing bugs like this, this is one case where I'd be peeved if they did, as I had no idea the colours were bugged and think most of them are cool, even that weird green. I love how bright some of them are and in general how they make the hair look better in most cases, especially when it comes to red / blonde / white. The old hair styles look like they are stuck in 90s low res graphics land. I bought them so I could specifically get the better reds. I think the only way to fix them at this point would be to duplicate the hair styles and leave one bugged, all though as a programmer I know that is not a simple issue, and more likely requires making a new shader set that mimics the bug. That would probably end up better but it feels like a lot of effort that would be better spent on *cough* Nautolins.