Use any solid colored background (doesn't have to be green), snap a photo and this will remove the screen color and replace it with a cool background. Includes over 50 backgrounds including beautiful landscapes, textures and fun shapes. You can also select any image on your phone to use as a background. Built in eyedropper to click on part of the photo to set the background to any color. Use the menu button to save the finished image or share to email or facebook. Best results will be achieved with even colored background and lighting. Use the threshold button in the menu to adjust how much of the background is removed.