Yeah must've been my cache.

I like the background of the button darkening, that's a nice improvement. If you had that, plus the images that change when you click them (including the lightbulb turning yellow when activated) I think it'd be perfect. I liked the gray images for unactivated, and yellow-containing images for activated buttons. This, plus the button background darkening like you have it, would be ideal to me.

Not sure how doable that is, I know it's a ridiculously fickle system to configure, but that would be my preference