anchor.diff:      \renewcommand{\headrulewidth}{0mm}
       % no line in footer (default)
     <% end %>
  -  \fancyhead[EL,OR]{<%= @page_number_command %>} % outside
  +  \fancyhead[EL,OR]{<%= "\\hrule height 0.19\\RtRelPt \\kern 0.33\\RtRelPt"  if @is_primary_repo %><%= @page_number_command %>} % outside
     \fancyhead[ER]{<%= @header_text %>} % inside even
     \fancyhead[OL]{<%= @header_title %>} % inside odd
     \RtFooterContent
  
positive.code:   <% end %>
  }
  
  % specify pagestyle
  \fancypagestyle{RtPageStyle}{
    \fancyhf{}
    \fancyhfoffset[LE]{0mm}
    <% if @is_primary_repo %>
      % single line in header (default)
      % double line in footer
      \renewcommand{\footrule}{\RtDoubleHRule\par}
    <% else %>
  
negative.code: \setlength{\headheight}{14\RtRelPt}
  \newcommand{\RtDoubleHRule}{
    \begin{minipage}{\textwidth}
    \hrule width \hsize height 0.19\RtRelPt
    \kern 1.6\RtRelPt
    \hrule width \hsize height 0.19\RtRelPt
    \end{minipage}
  }
  \newcommand{\RtFooterContent}{
  