I watched a video of a guy doing this step by step and I still can't make it work.
What I want to do is to replace a shape with an image. I assume the way to do this is to make the image the background color of the shape, if you will. On the stage element, I click "creationcomplete" and then type in the following code:
$(sym.lookupselector("BIG_RIGHT_BOX")).css('background-image','url(ima ges/Karma.jpg)');
I put the picture (karma.jpg) into the project, and I can see it in the tab "images."