We have to use this illustration in the wizard. Notice this is not an icon but an illustration, so we have to use directly the svg image. To do so, please follow this example -> https://git.magnolia-cms.com/projects/ADDON/repos/external-dams/browse/magnolia-external-dam/src/main/java/info/magnolia/external/ui/contentapp/DamContentBrowserSubApp.java#68. So, we have to:

• store the illustration in admincentral resources directly
• Load an ExternalResource pointing to the illustration
• Create an Image using the ExternalResource
• Add a new illustration method for IntroCoverDefinition, accepting the name (just the name, not the path that should be always the same) of the image.