An admin colleage of mine requested me to have a "Discord button link" integrated into the right side panel of the wiki. You know, where the vanilla "Recent Wiki Activity" and the "Live! Chat" is. And it might use some originality, even if it's just an aesthetic paste-on with one object.
My colleague provided me with an image to use with the discord link. I can do what I like to it, like simpily making a direct link to the discord page as per requested, or even make it more fancy like a rollover button. The question is, how do I edit the side section so I can simply implement the image and make the wiki's discord quick-accessable at any page? Do I need to go to its MediaWiki:css to edit it?