Use case or problem
When in a document with several headings, you can use the Outline tab of the sidebar to scroll to a heading. However once selected, as you continue to scroll, the same heading remains selected in the sidebar, rather than update to your current scroll position.
Proposed solution
It would be great if the sidebar’s selected heading would update to the current heading you’re under in the document.
Example: flex - CSS: Cascading Style Sheets | MDN . On the right side of the page, the current section is highlighted as you scroll.