Does anyone else notice the striking similarity between the new Enterprise design and Bootstrap? I guess that's what you get when you hire Mark Otto.
https://enterprise.github.com/ http://twitter.github.io/bootstrap/
https://enterprise.github.com/ http://twitter.github.io/bootstrap/
The purple space background was designed by an illustrator here at GitHub and I just put it to use. That the page ended up being purple and blue like Bootstrap is kind of just a coincidence. Previously the Enterprise site's background was a custom-made OS X ish space background—lots of blue and gold.
Beyond that I don't see a huge concern of the two looking similar. Bootstrap 3's homepage will be massively different from v2s today if it helps though.