How can change configuration parameters of jquery easy pie

How can change configuration parameters of jquery easy pie

I am using `juery easy-pie chart` plugin for making pie charts.Initially I pass default configuration parameters.After I want to change configuration parameters like `bar-color, size`of pie chart.

default configuration parameters:

  2. $('.chart').easyPieChart({
  3.     easing: 'easeOutCirc',
  4.     barColor: '#1abc9c  ',
  5.     trackColor: '#f9f9f9  ',
  6.     scaleColor:false,
  7.     scaleLength: 5,
  8.     percent:67,
  9.     lineCap: 'round',
  10.     lineWidth: 15, //12
  11.     size: 150, //110
  12.     animate: {duration: 2000,enabled: true},
  13.     onStep: function(from, to, percent) {$(this.el).find('.percent').text(Math.round(percent));}
  14.      });

I know, How to set `percentage` value dynamically to pie-chart,just like in the following way.

  1. $('#'+domId).data('easyPieChart').update(value);
except `percentage`, I want to set configuration parameters dynamically like 

I want to set size,bar-color of pie chart dynamically.For this I tried allot but I didn't find the way.

tell me,The plugin what I am using is it supportable as per my specks. If it is supportable how can I fix this.

please can anyone help me.

Thanks.