It doesn't work for me either. I get grey bars with white font on the bottom bar, and grey font on upper. Maybe they should be black, but i640 and Treo 500 have something I call "Asus skin". Look at the pictures of Asus PDAs with WM6 and you'll see the bars are somehow skinned. They are brighter and have sharp line in the middle. I don't know how to describe it. My english is not that good. I whish i could get rid of this.
I thought the scheme would work. It works as a part of homescreen, so why not separetely? Can't get it :/