Why do my app icons look different ?

[AC Question]

I recently updated my phone, a galaxy s6, to lollipop 5.1.1.
Now applications such as camera,messages, and settings look different, they are round now. I am confused as to why this happened and if other samsung galaxy s6 users are experiencing the same problem. Please respond quickly as I am currently worried.
Thank you.
p.s.
My service provider is sprint if that in any way helps answer my question

 

[B. Diddy]

Welcome to Android Central! Do you mean on the homescreen? Can you show us a screenshot? http://forums.androidcentral.com/am...ide-how-post-screenshots-android-central.html