lane's svg does not have property color

genome-vuer/src/js/lane.js

 Vue.component("lane",{
   template: 
     `
-    <svg :height="height" :x="x" :y="y" :stroke="color">
+    <svg :height="height" :x="x" :y="y">
       <line :x1="x+10" :y1="height/2" :x2="width" :y2="height/2" :stroke="color" stroke-width="2" stroke-dasharray="20, 5" />
     </svg>
     `,