file_name - [image & artwork only] Get/set the name of the image/video file being shown. Note that if you set this on an artwork or a dynamic image object it will get reset the next time the user changes the game selection. If file_name is contained in an archive, this string should be formatted: "<archive_name>|"
Quote from: https://github.com/mickelson/attract/blob/master/Layouts.md#Imagefile_name - [image & artwork only] Get/set the name of the image/video file being shown. Note that if you set this on an artwork or a dynamic image object it will get reset the next time the user changes the game selection. If file_name is contained in an archive, this string should be formatted: "<archive_name>|"