It is possible to change the images and favicon in the Pocket Pass Enrollment application.
For images referenced from css files, please see the 'Style sheets' document.
How to use
This is done by adding the new image with a name that matches the original image in the /overlay/activatepocketpass/images folder.
In the case of favicon, the new favicon must be named 'faviconprism.ico' and placed in the /overlay/activatepocketpass folder.