+1, I do a lot of typing on my android often right before bed to get the last of the day's thoughts out of my head to reduce anxiety and help me sleep. I would like to use Evernote for this, however it's glaring black text on white background is too bright, even at minimum brightness. My current solution is to use the Screen Filter app at 25% plus the minimum brightness setting to make evernote not painful to use. I would very much support a white text on black background theme for the app. A themeable app would be enought of a draw for me to go premium.