Pictures were drawn but took no hits, so clicks fell through to the page.
Observed in OneNote 2010 on "av: casual night in the trees": a click
selects a picture with a dashed border 5 px outside it, eight handles on
that border and a 25% tint; dragging the body moves it on the page grid;
edge handles stretch one axis and corner handles keep the aspect ratio at
the larger of the two scales, anchored at the opposite corner (a corner
drag of (-75, 30.75) pt gave 281.83 x 169.35 from 333 x 200.1). Background
pictures pass clicks through.

The editor gains image_placement and place_image, whose move or resize is
one undo step and marks a resize as set by the user, as the page writer
stores it. The scene reports picture hits in paint order and can draw one
picture at a previewed rectangle. The host replaces its read-only focus
with ObjectFocus, so a selected picture hides the caret and suspends
typing as a placeholder does, while keeping undo.

Assisted-by: claude-opus-5