This is probably the nicest of these nascent tools. Kudos for that. :)
While I applaud what people are doing here, the real holy grail will be a solution that can make the menubar opaque - without modifying the desktop picture (or making a copy and modifying it - which is what I assume this does). After all, if you want to randomize your desktop picture (for instance), none of the tools so far will do this.