Accessing Content Library images outside of Rise

Hi, we have a Moodle-based LMS which we're using to distribute our Rise 360-created courses.  When I upload the SCORM packages to the LMS, it asks me for an image, which I would like to match from the content author's Cover page.  But I can't see a way to access this image to use it.  Maybe that's the plan, or am I just missing something?