code: def full_stylesheet(self):
          
          latex_fragment = r"""
          \usepackage[colorlinks=true,linkcolor=blue,urlcolor=blue]{hyperref}
          \hypersetup{
             pdftitle={%s},
             pdfauthor={%s},
             pdfsubject={%s}
          }
          """ % (self.document.properties.get("title"),
                 self.document.properties.get("author"),
                 self.document.properties.get("subject"))
          return latex_fragment + self.stylesheet
docs: Return the style sheet that will ultimately be inserted into
          the latex document.
  
          This is the user given style sheet plus some additional parts
          to add the meta data.