Well, I got a tad fed up with the default white theme so I'm making my own.
I for one find darker themes to be easier on the eyes, and I run a modified xfce_dusk theme with compositing enabled on my laptop, so that's the inspiration for this.
I snagged the transparent tray image from the new Hero theme, the rest is gimped from the original/is the original.
I'll release a metamorph pack once I get it a bit more polished, there's still an issue with the background for items on the shade pull and the text for the clock and status bar are too dark.
Let me know what you think.