How to set up Atana Studio 3 Themes in Pydev

I've installed the Aptana Studio 3 preview and noticed it has support for themes (such as a bespin style or Ruby envy) and I'd love to use the Bespin one in Pydev but so far I've had no luck getting it to work, 开发者_如何学Pythonanyone have a clue as to how to get it to work?

Video showing the themes in action.

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1. Window->Preferences
2. Aptana->Themes