code: def configValue(self):
          
          if not self.data:
              return None
          else:
              pen = QtGui.QPen()
              pen.setCosmetic(True)
              pen.setColor(self.colorCti.configValue)
              style = self.styleCti.configValue
              if style is not None:
                  pen.setStyle(style)
              pen.setWidthF(self.widthCti.configValue)
              return pen
docs: Creates a QPen made of the children's config values.