When blocking out objects that restrict line of sight, occasionally important and often attractive map features vanish. Buildings were my first inspiration for this. If the (rectangle) shape allowed tokens to view past the first edge of the barrier, they would see the top of the building, tree, etc... and still be unable to view the opposite side. Obviously this cannot replace the existing dynamic lighting, but as an option. It also might make it possible to create a single line shape from a second-edge feature that would work similar to a window, blocking token travel but not line of sight.
