Okay, here it is, in its final formů I think
I replaced the horizontal KitKat-style battery indicator because it was too hard to read the percentage. This circle indicator is easy. As the battery drains, the circle opens. 100% is indicated by a closed circle (no numbers), and charging makes the circle spin slowly (subtle yet cool). I also themed the Quick Action buttons to match, courtesy of GravityBox (Xposed Framework module).