Thread:Hackey5/@comment-25407271-20160120214811/@comment-5645428-20160122024447

Indeed, the image has no visible extension, so I assume there are some internal things going on. That's just how it works apparently. Simply, all you need to do to update the background is to do it through the Theme Designer. If you're wondering why the background is stated at all in the CSS when the Theme Designer also implements it, it's because there's a statement that removes the background at smaller screen widths, so we have to put it back. For the record, this is the system wiki background file. There's one for the wordmark and favicon as well.

http://vignette3.wikia.nocookie.net/geometry-dash/images/5/50/Wiki-background

Yes, I am aware I have currently messed up the splotches while trying to optimise them since they were running as position:absolute and inefficiently, so I have been trying display:inline-block, position:relative, although the whole thing is weirdly set up. Might reset it depending on how it goes.

Anyway, also why I've been inspecting the chat is because I'd like to formally assign you with the task... no, project, of refining the ChatOptions JavaScript at a local level to suit the wiki's common usage of it. We've encountered enough issues that this would be of great benefit to the chat, removing the dud features and improving the interface. Personally, I think this is just the kind of thing you've been looking for. If you'd like to take this on, below is the child you're going to adopt, and you'll have to learn his nature inside out.

http://dev.wikia.com/wiki/MediaWiki:ChatOptions/code.js

If you're ready, good luck!