Disable time machine star animation in Mountain Lion

From time to time I inadvertently delete a file and so I go into time machine to recover it. Which is super useful. What's driving me insane, though, is the animated background animation of expanding stars. Trying to scan my folders while the background keeps moving forward is making me seriously nauseous. I get a headache after only a few minutes...

It seems like there used to be a way to turn this frankly superfluous animation off (e.g. http://hintsforums.macworld.com/showthread.php?t=102266, or http://hints.macworld.com/comment.php?mode=view&cid=117454). But starting in Lion this seems not to work any longer (see https://discussions.apple.com/thread/3935380).

Any ideas how I can get a steady background image in the time machine interface?