Move the purple (RGB FF00FF) layer above all the other layers - then you can also apply layer effects like drop shadow or stroke. (I like adding a 1 px dark gray stroke to many of my layers.)
I realize this is a little old, but I wanna read it. =p Please post a working link. Mostly I would just like more colours in the Dorpond and the "flat" style (dunno who made those). 3 shades of each colour would be nice. If anybody has or can tell me how to make them, much appreciated.