The Crumbs: "Sage > Threads and Fibers > ...", starting on the left side of the panel. This is a series of links, showing the current article's location within the Sage content hierarchy. The last link is the article itself, the previous link is the topic containing the article, and so on. The second link from the left is the volume, and the leftmost link (entitled "Sage") takes you to the Sage Welcome page (hovering over this link displays version information about the Sage web app).

To the right of the Crumbs, you'll see a trio of controls for adjusting the article's font size. The central label shows the current zoom factor, and clicking on this will reset the zoom to 100%. On either side of this, you'll see magnifying glasses: one to zoom in, and another to zoom out.

To the right of the Font Zoom controls, you'll find the Search Edit. Type a word (or set of words, separated by spaces) to see a list of all articles that contain the word(s).

See Search Features for details.

To the right of the Search Edit is a trio of buttons: "Toggle light/dark theme", "User settings", and "Login" / "Logout".