Scrolling allowed 36 pt of blank page above and left of the furthest
object, so a page like one with an Ivy background image placed at
(-27, -3.6) could be scrolled past its top. OneNote 2010 stops exactly
at the page origin or at the object furthest above or left of it, and
opens the page there. The far edges keep their 36 pt margin.

Assisted-by: claude-opus-5