Is There A Way To Turn Off The Blue Border in Exposé?

Have you checked System Preferences -> Exposé & Spaces to see if there’s anything you can change there?

Yep. Nothing There.

I think I got it:

Go to:
System > Library > CoreServices > Dock.app

(right click: Show Package Contents)
then Contents > Resources

The images are: expose-window-selection-big.png for normal windows and expose-window-selection-small.png for minimized windows.

Having the image the same size and making the visible part smaller reduces the size of the highlight and the other way around.

Now you choose what you want to change it to.

Thanks. I changed it so that it’s transparent now.

You’re welcome ;)

@mirza Are you really talking to Dustin Hoffman?

For anyone interested, I wrote something about how to do so here.

@gailcalled : Yes. Not the actor though. He’s breefield on fluther i think.