Board Thread:New Features/@comment-5211495-20160927110715/@comment-24757753-20160927200650

Here's a basic inversion for the global navigation based on the previous inverted globalnav styles - no JS needed!

It'll only activate when the page has been scrolled, and it also stops the bar being hidden as you scroll. It's not complete as I don't have too much time right this moment, but it covers the basics. If people are interested, I can finish it up later and put it on the Dev Wiki.