As you use iOS, you’ll become accustomed to seeing activity indicators in many of your apps. The activity indicator is denoted by a spinning wheel, such as what you might see when certain apps load or begin communicating with the internet.
iOS’ activity monitors are typically monotonous, serving no other purpose besides letting you know that an app is doing something; but that doesn’t mean they need to be boring. A newly-released and free jailbreak tweak dubbed Spoke by iOS developer Unicorn808 lets you colorize these activity monitors.