Thread:The1AndOnlyMike/@comment-31826059-20170717111713/@comment-444327-20170717220342

I've done a tiny bit of digging.

Supposedly the source code for Galleries is contained within what should be the "MediaWiki:Common.js" page, which on our wiki according to the Search bar is actually located here.

As you can see, the code is pretty basic and we can't edit it. If we *could*, we'd be able to copy the relevant section of code from here. In our case, collapsable galleries.