Does anyone know what the little symbol to the right of the battery icon is? Pretty sure it showed up with this last update, but maybe I turned something on that wasn’t before. I've been googling but can’t find anything. And it doesn’t always show there, only on the home screen. And the 81 is always an 81, and it’s separate from the battery pic because when I switch from an app (where it doesn’t show) to the home screen (where it does) it sort of floats on as a separate item.