@rnr
Put your picture in the resources and this code in the site inspector CSS or global for every page, for the whole site.
header { background-image: url(%resource(name-of-your-image.jpg)%); }
@rnr
Put your picture in the resources and this code in the site inspector CSS or global for every page, for the whole site.
header { background-image: url(%resource(name-of-your-image.jpg)%); }