Thank you for writing.
The images in the left column are part of the menu items - each menu item can have its own image. These images are being assigned to the Image property of the RadMenuItem:
RadMenuItem item =
item.Image = myImage;
I hope that you find this information useful. Should you have any other questions, do not hesitate to contact us.
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Feedback Portal
and vote to affect the priority of the items