White and blue might be Twitter's official look, but it's not exactly eye-friendly at night -- fire up the official mobile app in the dark and you'll burn your retinas. Mercifully, that won't be a problem from now on. Twitter for Android now includes an optional night mode that, as you'd suspect, changes the palette to less eye-searing shades of dark gray. This isn't a new feature in Twitter clients by any stretch (Tweetbot says hi), but it's helpful if you prefer to use the official app. As for iOS? While there's no mention of a night mode yet, it's likely coming in the near future.