At the header of each page, you see the currently open page name. Let’s call this user interface element the “Page Namer.” This element of the user interface serves a few roles:

• It indicates the currently open name (duh)
• Its font color indicates the current page status:
  • Black (in light mode) indicates the page is currently saved
  • Gray (in light mode) indicates the page is currently not saved
• By changing the page name and hitting Enter (or clicking/tapping outside of it) you rename the page, automatically updating all references to it as well.

If you rename a page into another folder, documents in its original folder that are linked only from that page move with it, and their links in the page are updated. Documents also linked from other pages stay where they are.