QGIS/images/themes/default/join_bevel.svg

<svg height="16" width="16" xmlns="http://www.w3.org/2000/svg"><path d="m0 7h9v9" stroke="#000" stroke-linejoin="bevel" stroke-width="10"/><g fill="none"><path d="m0 7h9v9" stroke="#6389b8" stroke-linejoin="bevel" stroke-width="8"/><path d="m0 7h9v9" stroke="#d3c02d" stroke-dasharray="2 2" stroke-width="2"/></g></svg>