do not look at the ports, those are just cut&paste stuff of non-alpha-blended images. else there should be quite a number of alpha-blended objects in the DesktopX library.
i use alpha-blending in my skins. i don´t consider myself as an artist though. if i would express myself with a few pixels i think that would be rather sad. also i don´t skin DesktopX, so probably nothing you would like: http://www.skinbase.org/gallery.php?uname=moshi