A dashed stroke is cut into dashes with corners wherever they fall round
the outline, and a width profile or a brush can give the stroke corners
of its own. A drop shadow's spread mitres those corners out, but a whole
ellipse or a box still counted as growing by exactly its spread, so the
shadow was cut off at the layer's edge (up to 255 levels).
Such a node now gets the room a star does. Whether the outline's own
mitres end on its box is a check of its own, which the stroke's reach
keeps using, so a node with no spread keeps its bounds.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
