Here's how you can use inverted rendering to change the text to white and the background to black on your Android Jelly Bean device. This will also help save power.
1. Go to the Accessibility menu.
2. Click the checkmark next to Inverted Rendering.
3. You can also change the contrast by using the slider.
For more, see the original article at the link below.
50 Android Jelly Bean tips, tricks and hints | Tech Radar
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