This theme only affects Roblox's recently designed pages. Those currently include: Home, games, profile, friends, and inventory pages. Other pages aren't included because they're a pain to work with.

I'll try to keep the theme up to date, which shouldn't be hard.

update [12/30/15]: Some of the affected pages require touch-ups. I'm not actively working on this style right now, but I may get back to it at some point.