OnePlus today launched WellPaper, a wallpaper app design that changes depending on how you use your phone.WellPaper is a live wallpaper app. It uses your phone’s app usage data, then categorizes apps into six categories: Social, Lifestyle & Communication, Entertainment, Gaming, Information & Business, and Tools. Then assign each category a unique color. The color of the home screen changes throughout the day depending on usage.There are currently three patterns in this app. The first features pastel colored moving tiles each representing an app category. The second pattern features concentric rings of different colors, and the third gently blends the colors.OnePlus claims that WellPaper doesn’t consume as much power as typical live wallpaper apps. Unlike other apps, WellPaper does not continue to animate the wallpaper, it only draws when the phone is unlocked.WellPaper is available on the Google Play store for all Android phones.