Okay, well I decided to diverge from an inverted theme and just work on a generally "darker" theme. I did this by just adjusting the hue/lighting/etc. of each image, so right now it looks a wee bit rough around the edges. Still looks promising though!
@arc13, I am having a lot of issues with the battery, time and wifi stuff. Even if I theme them properly or include the original files untouched, they often won't show at all. Just a heads up! Also, is it possible to make the settings text and keyboard text colorable? It still looks okay here, but it would look a bit nicer if I could make it look like the rest of the app!
Anyways, screenshots ahoy!