Default layer images

Is there a way to access the default layer images? Specifically, I’d like to access and modify the Table Layer background image and header image to a different color and use them as a reference in creating a new image. Where would I find the original?

Did you ever figure this out? In prior versions, you used to be able to embed your images and videos or simply link to them in the template file for your show. I thought you could embed even the stock ones from ML as well, save the template / show, close the program, then do a right-click, show package contents… you might be able to do that with the ML app pkg itself and copy out the file, then reimport with your changes and use as a layer element.