raphael js разные цвета stroke

var paper = new Raphael('canvas',1300,1300); 
paper.path('M 240 240 L 390 240 A 150 150 0 0 0 346.066 133.934 Z'). 
	attr({"fill":"red","stroke-width":3});

<script src="http://v.tdwebp64.bget.ru/soldream/tpl/js/raphael.min.js"></script> 
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 
<div id="canvas"></div>