Did you ever find the transparent slider or taskbar that would work for stock rom?
I would love to know if you did.
I can't seem to find anything on themes etc for Tilt2; I have posted a ton of places, and no one ever answers, so I guess there isn't anything available for the stock ROM
PS: I have found several threads that remove the top and bottom bars if you are interested, I find the info there too useful to just get rid of though, even though I hate them being black.
Samsung Galaxy S3- White