On the EnergyApp example, under the Yearly View, how can I alter the speed for the transition of the Pie Chart when the slider is changed to a different year?

I tried the following but to no avail . Any suggestions?

animate: true,
animate: {
duration: 5000,
delay: 0,
easing: 'linear',

Link to the demo is here: http://dev.sencha.com/deploy/touch-c...les/EnergyApp/