OldOasisNav

OldOasisNav un-modernizes the look of the navigation toolbar to the pre-2016 style.

It's an April Fools joke.

Customization
You can specify the colors used for the navigation bar by adding the following code:

For wikis without Discussions nor Forums, the position of the Explore tab is different. To adjust this, you must clone the CSS and adjust all  and   to be   instead of.