Please find attached a project with illustrating how to change the header's background color of the RadTabcontrol .
If you have further questions please do not hesitate to ask us.
I hope this will help you.
All the best,
the Telerik team
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 Public Issue Tracking
system and vote to affect the priority of the items