title: How to enable view of rulers in Chrome DevTools?
body: <p>Chrome DevTools previously offered a setting to show rulers when inspecting elements. It had a pixel ruler at the sides of the view, and boundary lines for each element extending the full view of the page. </p>
  
  <p>It used to be found (as I recall) in "DevTools Settings / General". There no longer is a General section, and I don't see it in "DevTools Settings / Appearance". Has this been moved, or removed? I'm not finding documentation or discussion of it. </p>