I'm not sure if this is possible, but I want to create a panel with a header image.
The way I'm planning to do this is to add a new Page element within panels called "Banner" (in this menu http://puu.sh/jfBbm/8c09cfe2fe.png).
Is it possible to have it so then when a user clicks the "Add Panel -> Page Elements -> Banner -> Chose image?" or is it not possible to have a variable image with this way?