What is the blue circle on the iPad2 icon?

Question

iOS

Good time of the day. I created a copy to restore iOS 6.1, after which white and blue circles began to appear at the bottom left on the application icons. What does it mean and how to remove it.
Thank you very much)

Answer 1

Blue is a new application that you did not open after installation. White I don’t even know .. I haven’t seen this

Answer 2

No. I definitely opened it. Before. And he doesn't disappear. More. When you open an application with a blue circle, such a sign [N] lights up in the upper right corner, and when you open it with a white one, this [B]. What does it mean?
Thanks in advance.

Answer 3

You have JailBreak on your iPad and there is a tweak that allows you to forcibly close applications on the device, apparently you bought a used tablet from someone, and the previous owner played around with Jail. Read on the Internet what it is if you are interested.