I tried flipping to a new wallpaper, as I had read somewhere. Still no go.
I also don't have wallpaper set to automatically change, which I read also causes an issue.
Seems to be a lot of variability in success with this program. I chalked that up to it maybe not being the best bit of code, so I decided I was probably better off without it for now.
I would LOVE if someone could figure out what's happening when Aperture is running (where the menubar is all but completely opaque again). Surely if Aperture can trigger such a change, someone can figure out how to make it be the default state.