allout-chart-exposure-contour-by-icon is a compiled Lisp function in `allout-widgets.el'.

(allout-chart-exposure-contour-by-icon &optional FROM-DEPTH)

Return points of subtree items to which exposure should be extended.

The qualifying items are ones with a widget icon that is in the closed or
empty state, or items with undecorated subitems.

The resulting list of points is in reverse order.

Optional FROM-DEPTH is for internal use.