So there's this popular new app called Faceapp. Take a selfie, and the app will change your face using filters that make you look younger, older, more male, more female, and the like. It's available for iOS and Android, and, after going kinda viral last week, it's currently the #10 free app in Apple's App Store. But people have noticed something off about it... The app's "Spark" filter, which was formerly called the "Hot" filter, lightens your face. ...