In e.g., ManageWiki/settings#mw-section-styling there are links, e.g.,
This will replace Miraheze's default logo. See https://meta.miraheze.org/wiki/ManageWiki#How_do_I_change_my_logo.2Ffavicon.3F for how you can change it.
However they are not clickable.
They need to be made clickable.
Have a look, https://meta.miraheze.org/wiki/Special:ManageWiki/settings#mw-section-styling .