User blog comment:Chalk33/Unity! Landus 2014 Update/@comment-4899022-20141120003028/@comment-11429692-20141124192441

I'll choose "whenever I can" :P.

It's this: http://www.bricklink.com/catalogItem.asp?P=90609 It's one of my favorite ones to use, so I have pretty much none left :P.

It's at least darker (no pun intended ;D).