[ElCondor], the master of graphics, and the newest WMPoweruser graphics guy has gone on with the help of his friends to make a wonderfully nice 2.5 Theme. The newest theme is called GTX and just today it was released. After much anticipation, people are excitedly using the new product.
The current theme only works with 192X builds of Sense UI, and they are still working on the update that has support for 201X builds. This theme works with VGA and WVGA devices, so sorry everyone else, you will need to upgrade your devices resolution.
If you want do give your manila builds a new look, this would be the best way to go along doing so.