* drag-and-drop-file-target
** Added in https://we.phorge.it/rP8573a1e14231867a145f09535e3e297c4dcda3e2; usage removed in https://we.phorge.it/rPdd76143399d8b77a14baca44f99051aa6298e487 by deleting `webroot/rsrc/js/core/behavior-drag-and-drop.js`
* drag-and-drop-instructions
** Added in https://we.phorge.it/rP109a202b6c77d61141d8ff4c98ce2548064334ef; usage removed in https://we.phorge.it/rPdd76143399d8b77a14baca44f99051aa6298e487 by deleting `webroot/rsrc/js/core/behavior-drag-and-drop.js`
* recaptcha_only_if_privacy
** Added in https://we.phorge.it/rP1329b7b51ef88825b36cf47b3c680542c2895579, looks like it has never been used