Yellow Light is a free application that lets you change the screen color of your device to into yellow. It is the perfect app for those who want to bring a little joy to their phone or tablet. This application has several options that let you choose the brightness and the color of your screen. It is very easy to use, so you will not have problems in changing the color of your screen. You will not need to install anything to use it. You just need to download this application and you are ready to go.