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!
Thumbnail Style
Class Name:fr-thumbnail
Thumbnail Style with shadow
Class Name:fr-shadow
Circle Style
Class Name:fr-circle
Black & White with Colour on Mouseover
Class Name:fr-bw
Zoom on Mouseover
Class Name:fr-images-flip1