dc.DrawRectangle(5, 5, 50, 50)
 
         dc.SetBrush(wxLIGHT_GREY_BRUSH)
         dc.SetPen(wxPen(wxNamedColour('BLUE'), 4))
         dc.DrawRectangle(15, 15, 50, 50)
 
         dc.DrawRectangle(5, 5, 50, 50)
 
         dc.SetBrush(wxLIGHT_GREY_BRUSH)
         dc.SetPen(wxPen(wxNamedColour('BLUE'), 4))
         dc.DrawRectangle(15, 15, 50, 50)