arrowhead_1.svg (the CM/MJX long-arrow head) baked in — transform chain
collapsed to a clean scale 0.2 + y-flip: viewBox 0 0 50.2 104, tip at
(50.2, 52), notch mouth at x 27.2, tail opening 9.6 tall (≈10 at the
owner's full height 104).
Sizing per the owner's spec: line width stays 1.5; head height 16 makes
the mouth opening tuck the line flush (the LaTeX proportion). markerUnits
userSpaceOnUse, refX at the mouth (27.2) so the line terminates at the
notch — never at the narrow tip, where it would show through. Edges
shorten by the tip overhang (≈3.54 units) so the head's tip lands
exactly on the target node's border.
amosblomqvist
43ada6ce23