Add an extension to allow for adding tabs
Regarding #77 (closed), it would be useful to have a "tabbed view" widget on the wiki. Vanilla MediaWiki does not have such a feature - the closest there is is the collapsible element support, but that doesn't work well for accessibility from my testing, and isn't very intuitive. However, there are extensions that implement this feature, such as Tabber Neue.
As an example of potential usage - this could be useful here, where instead of "Expand" buttons for each possible flashing method, there could be a tabbed menu instead: