Instant “Night Mode” in iOS 5
If one of your “must haves” for an ebook reader is a no-hassle way to switch to white-on-black Night Mode, I have good news. I just discovered that you can force iOS 5 to do it for you:
• Go to Settings: General: Accessibility.
• Scroll down to Triple Click Home, and click on it.
• Choose “Toggle White On Black.”
Now, triple-clicking the Home button causes the screen to display a “film negative” display, where all colors are reversed. If your ebook app is set up to show black-on-white, it’ll automatically switch it to white-on-black.