CXTPTabControl - Set single tab color

Problem is to set the color background of a single tab in CXTPTabControl.

Tab control is themed via:
wndTabControl.GetPaintManager()->SetAppearance(xtpTabAppearancePropertyPageFlat);
wndTabControl.GetPaintManager()->SetColor(xtpTabColorOffice2003);
wndTabControl.GetPaintManager()->DisableLunaColors(FALSE);

Now I try setting a single tab backgroud to red via:
wndTabControl.GetItem(3)->SetColor(RGB(0xFF, 0x00, 0x00));

But tab backgroud remains unchanged. Any advice?

mgampi, thanx, didn't worked as I wanted.

Okay, perhaps this is useful for someone who as a similar problem:

Tab colors only work in "OneNoteColor" mode, so enable this via
wndTabControl.GetPaintManager()->SetOneNoteColors(TRUE);

Then derive your own control and override GetItemColor

class CXTPTabControlEx : public CXTPTabControl
{
public: 
  COLORREF GetItemColor(const CXTPTabManagerItem* pItem) const {
    return pItem->IsSelected() ? GetPaintManager()->GetColorSet()->m_clrButtonSelected : OwnColor here ;
  }
};