Gadget export
From Fallen London Wiki
To export the DarkModeSwitch gadget, click on "Download" button, save the downloaded file, go to Special:Import on destination wiki and upload it. Then add the following to MediaWiki:Gadgets-definition page:
* DarkModeSwitch[ResourceLoader|dependencies=mediawiki.user,user.options,mediawiki.api,mediawiki.storage,oojs-ui-widgets|default|hidden|skins=darkcosmos|targets=desktop,mobile]|DarkModeSwitch.css|DarkModeSwitch.js
You must have appropriate permissions on destination wiki (including the right to edit system messages) and import from file uploads must be enabled.
