When you expect to take photos of landmarks, buildings, landscapes, and other outdoor scenery with clear blue skies in the background, you may end up with nothing but overcast weather, resulting in a completely different mood in your pictures. Instead of forgetting about all your images with dreary gray skies, try turning those grays to blues for happier, more shareable photos. To brighten the skies in your pictures, we'll use the easy sky editing tools in the Google Photos app for Android an...