title: How to change the dot point color and style in Morris.js line graph?
body: <p>I uses <a href="http://www.oesmith.co.uk/morris.js/">morris.js</a> to draw line chart graph, but I can't figure out how to change just dot color and style in line chart.
  Does anyone know how to change just dot styles?</p>
  
  <p>Thanks.</p>