Hi,
Sorry, not sure what you mean by photo background and how you are about to change it. If you haven't implemented it yet - this may be helpful: http://stackoverflow.com/questions/20...
You can set any property using Appery function: preAppery('componentname').css('color', 'blue');/preSame as above, just without using Appery function (straight jQuery): pre$('div[dsid="componentname"]').css('color', 'blue');/preorpre$("[dsid=componentname]").css('color', 'blue');/pre
Where componentname is a name of the component.