How to change color of scope buttons in UISearchBar?

[antonov]

I have an iPhone app which has a UISearchBar with Scope Buttons.
But when I change the color of the UISearchBar (e.g. to Black Opaque) the
scope buttons still are displayed in the default gray.

How can I change the color of the scope buttons to be the same (or similar) as
the UISearchBar?

~~ Tried to Google -- found similar questions in forums but no answers ((

[antonov]

Still haven't found solution...