Offering more than just the basic WordPress image styling is great when you know you have more options available to you. Flat Responsive offers 6 extra styles that you see below. All you need to do is add a class to your image and you are all done!
Class Name:sleeky-thumbnail
Class Name:sleeky-shadow
Class Name:sleeky-circle
Class Name:sleeky-bw
Class Name:sleeky-images-flip1