The SVG specification defines three properties to reference markers: marker-start, marker-mid, marker-end. It also provides a shorthand property,marker. Using the marker property from a style sheet is equivalent to using all three (start, mid, end). However, shorthand properties cannot be used as presentation attributes.
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The test passes if the shapes in the top row have no markers, while the shapes in the bottom rom have small blue markers (26 in total).