https://www.mediawiki.org/wiki/File:JADE_event_schema.svg
https://www.mediawiki.org/w/index.php?title=Topic:Tzvxe3sckmfoftp8&topic_showPostId=u5dwrh6ke5dnxv6p#flow-post-u5dwrh6ke5dnxv6p
This should be mentioned in the file usage section of the File-namespace page.