Board Thread:General Discussion/@comment-45291796-20200523231456/@comment-9605025-20200524073940

If the infobox is a portable infobox, just provide the image's name (including file extension) as input to the proper template parameter. See here for how to insert multiple images.

If it is not a portable infobox, please link to it. Non-portable infoboxes can have custom implementations that impact how things like images are added.