To extent my Battery Life to the Maximum: I had changed my Windows's Default (Black-on-White) background to the (Green-on-Black) terminal looks in the Apple II days. Logic dedicate that I should save more Battery life since 90% of my desktop is now DARK, with only 10% Text in light-green. However, doesn't LCD works by "Blocking the white-backlight" to simulate Black? Which means the White-lightbulb is always on, only the molecular-twisting of LCD filament is blocking the white light.....If so, I don't save anything using that 80's background right? Any comments?