Changing the default banner image on a process brings life to the page and can be a great way to help constituents better understand what a particular process is for.
To change your banner image, first visit the public-facing process launch page for a template. You can find it by clicking "Get started" from the template page and copying and pasting the link into your browser.
Once on the public-facing process page, hover over the default banner image and click the button that says, "Change banner image."
Select an image to upload and you're good to go!