[the_arun]

Does dark theme also consume less energy and extend battery life?

[steve_adams_86]

I think it would largely depend on the display technology. I know for some technologies a black pixel uses nearly no energy, but for others, all pixels are equally 'lit' by the same backlight.

[danellis]

For OLED displays, black uses (almost?) no energy. For LCD displays, black uses more energy, since the pixel has to be energized to block out the backlight. The difference is negligible, though, since the backlight uses far more.

[DonHopkins]

Outdoors at night, it makes you less of a target for moths, mosquitos and Predator drones.