If you click "Preferences" you will find plenty of options to change your wiki and other various options.
Appearance: to note at the bottom of the page there is a dark mode that just inverts all the colours
User Profile: just going to highlight key things in this sections.
Editing: This section is mostly for if your going to edit in the wiki.
- Edit pages by multiple clicks
- Extra editing tools
- Previews after or before editing
Recent changes: click "Recent changes" and that is what the options change.
- View of minor edits
- days you see and amount of edits you see
Watchlist: I don't know
Beta features: Who knows.
Banners: I really don't know.
Notifications: Self-explanatory, change your notifications to know when a page gets edited or a new page is made.