Transparent Thumbnails without box frame

I am looking for advice on how to make my thumbnails transparent without using a DVD or bluray box frame. I am using Anodized Trickle Theme and wish to use the transparent option but do not want the box art just the thumbnail as is. Does anyone know of a thumbnail template to do this in Thumbgen. Help would be appreciated greatly.

I will have one in the next release.  Or you can create one yourself using TG Designer.