A circle with a slightly different shade of the background is shown around their head. i hope this helps.
        
             
        
        
        
What color?
The black and white/ blue and white?
If so that the barcode scanner. 
Hope this helps any! :)
        
                    
             
        
        
        
Jason Scarpace also goes by the name of J. Vincent Scarpace. 
He is best known for his abstract fish art.
He holds a BS in Education (Art and Education), and after several years of teaching in both private and public schools, he retired to continue his creative journey and drive toward the creation of unique works of abstract art,
J. Vincent Scarpace's original works can be found in both private and public collections world-wide, in over 40 different countries and in all 50 U.S. States.
        
             
        
        
        
I think you mean who played the Joker. In "Suicide Squad" it was Jared Leto. In "The Dark Knight Rises" it was Heath Ledger. Hope this helps.