New icon after update to 8.1, rectangle with 3 lines?

[JimsMaher]

I started noticing a new icon that is almost always present on my phone after the update from WP8 to WP8.1:

What is the icon with the three horizontal lines inside of a rectangle?
I cannot find any reference to it online and there was no information provided with the update.

 

[Diavke]

That's a notification center icon. Place your finger on top of the screen and slide it down to see what's up.

 

[charlatan1978]

Not sure if you are serious.
Put your finger on it and swipe down.

 

[JimsMaher]

I was being serious, couldn't find the icon anywhere without knowing that it was called the "Notifications" icon.
Thank you.

 

[MBY]

The Help + Tips app has an icon glossary. You can find it in there as well as some other things you may see and want to identify.