You cannot reference a resource from the RadDocking control in the that way. The suggested code would work if you had:
which would make that resource a part of the application resources.
At this point you will be able to do something like the following:
This is, of course, not of much use as usually you would have only a Foreground and a Background property to use, which are often times black by default.
The bottomline is, you cannot reference resources unless you first include them or merge them in your project in some way.
I hope this helps.
the Telerik team
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