Ok, I got it all inverted.... this is just a tester though so report back with any issues.. I already know that it's not completely inverted on compose mail and when you scroll down on an email, the header (I think) turns white again but I'll have ecsnead look at it also and we'll get it 100%... An extreme thanks and credit to david1171 for finding the bg... good job man!
The purple text is because it was quoted but most emails will have white text... and the buttons are stock cause they weren't in ecsnead's blacked out gmail... and I did just use his gmail and added all this to it....
http://dl.dropbox.com/u/10789872/BlackedOutGmail2.3.4.1_version2.zip <-- download link... it's an update.zip...