Vanilla 2

I've been unable to get pP to change to any of the other styles. I've edited the jquery.prettyPhoto.js file shown below but no matter what style I set as the default, I get the 'light_square' style. Another interesting thing is that even though the default style is 'light_rounded', I'm getting the 'light_square'.

change example:
(function($){$.prettyPhoto={version:'2.5.6'};$.fn.prettyPhoto=function(settings){settings=jQuery.extend({animationSpeed:'normal',opacity:0.80,showTitle:true,allowresize:true,default_width:500,default_height:344,counter_separator_label:'/',theme:'light_rounded'...

Any thoughts about this?