Well, I know it's been a while... just to update. Changing the default.png to a 100% transparent image works fine (at least for the moment).
To be fair, since I posted the first time, I have received quite a good response from stardock support... (Deskscapes issues, Icon Packager, Windows Blinds, etc.) So I think that the problem with support was really related to the bunch of work you had before launching of the new versions of the products.
So, thumbs up! thanks for a great software!
