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I see there is no keyboard focus, but honestly I have no idea what I'm supposed to be looking at in this demo. There's no documentation whatsoever and the bug template wasn't filled out, so I'll need more to go on.
And what is the expected behavior here? Which control specifically should get focus? Obviously putting keyboard focus on the tab itself is probably pointless because in most cases we won't let the arrow keys through to be processed by the control, so are you thinking focus should go on the pane?
Right now I wouldn't classify this as a bug so much because there's really no defined behavior for what to do with the focus.
