code: def new_title_bar(self, title, color=None):
          
          # Build a title bar for top of page
          w, t, c = '100%', 2, color or HexColor('#404040')
          title = '<b>{0}</b>'.format(title)
          if 'TitleBar' not in self.stylesheet:
              tb = ParagraphStyle('TitleBar', parent=self.stylesheet['Normal'], fontName='Helvetica-Bold', fontSize=10,
                                  leading=10, alignment=TA_CENTER)
              self.stylesheet.add(tb)
          return [HRFlowable(width=w, thickness=t, color=c, spaceAfter=2, vAlign='MIDDLE', lineCap='square'),
                  self.new_paragraph(title, 'TitleBar'),
                  HRFlowable(width=w, thickness=t, color=c, spaceBefore=2, vAlign='MIDDLE', lineCap='square')]
docs: Return an array of Pdf Objects which constitute a Header