System icons ? - [SOLVED]

Good day, I am a new user to Bodhi so I am experimenting and having fun. I went to the Bodhi App Center and downloaded all the different icons. The problem now is that I don’t know where I change them in the system. I have been looking all over but I am lost. I went to System Settings and looked under Look but I could not see anything. I did find an icons reference in Files but I didnt see anything to reference the icons that I downloaded. Can someone direct me to where I change the icons so I can test out the ones that I downloaded?
thanks