You can add a custom image to the existing set of Banner Designs available in a
In the end user interface, click Your Avatar > Themes > Place Banner Management >
Place Banner Presets > Add new banner preset. (Note that only with Manage Community or Customize
Site permissions can see the Themes option under their user menu in
the upper right corner of the end user interface.)
Change the header text and background color or leave them as is.
Browse to the custom image you want to add and select it.
Set the background position and pattern for the image.
Place owners will now be able to see this
image in their Banner Design options.