how to add custom images to cq:Console type widgets?

Hi All,

I want to customize my welcome page with a new app along with existing apps in the left hand side(Websites,Digital Assets,Campaigns,Inbox,Users....).

I am able to add my custom app but not able to app image it's showing a blank before the app name.I have uploaded a new ico file which is app icon image ,added a property iconClass. Below is the structure of my custom app.

jcr:primaryType - cq:Widget

jcr:mixinTypes - cq:Console

iconClass - help

consoleDescription - Create and Update Incidents

consoleTitle - Support

if i give existing apps's iconClass value to my app ,corresponding app image is being appearing along with custom app name.

Can some one please assist ,how to get the custom image.

Thanks in Advance

Thanks,

Kishore