You can add custom images to the existing set of Banner Designs available in places. These are the images place owners see when they are editing the Banner Design of a place. You can also change the order of the default banners, or delete any of them.
Fastpath:
Any changes you make to the Place Banner Presets will affect what place owners see when they edit the Banner Design of their place. In the following example, the community manager has added a custom image of a white dog for place owners to use as a banner:
Note that the place owner can still choose to upload their own Custom image for the banner as well.