A good light app for reading in the dark. It does not tire your eyes like flash. The screen light will allow you to read what is written and keep your eyes comfortable. Easy to use. Just open the app. - You can choose the best color and brightness for your eye from the color selection area. - Your color selection will be saved automatically. - When you open the application again, you can continue reading with the color you chose. That's how easy it is. If you have any suggestions or complaints, feel free to comment. Your comment will be a light for us. :)