If you've been using the Google+ Android app for any amount of time, then you've probably noticed one thing: there's a lot of white. The majority of the screen - especially on a tablet - is blanketed in with a white backdrop consistently throughout the app. This is, of course, hard on the eyes (especially in a dark room), and can negatively impact battery life on phones with AMOLED displays.
To the rescue comes XDA forum member santiemanuel, offering his own themed mod of the G+ app, simply called Krad+. It's offers a completely inverted theme, and it looks damn good doing it.