How do you get a background image to zoom in to fill the screen and not size while having other components on top?

I wasn't my app to display a background but from using app inventor, it will just scale it to fill which will look weird on some displays. Is there an extension or way to get it to zoom in?

This will entertain you for a while....


Sure looks like it

I should of added I do want to put other components on top of the image