anchor.diff:          # now output the actual components in the layers. the presence of the lname node "anchors" the other components in the same rank to that level in the display
           # calculate a random color, but make it so that multiple runs will produce the same colors so there's no refresh shock upon viewing
           srand(layers.length)  #make it dependent on the number of layers
  -        alpha = 'cc'
  +        alpha = 'bb'
           layers.each_index do |i|
             color = '#'
             6.times do|c|
  
positive.code:         
          layers = (arch.class == Hash and arch.has_key? 'layers') ? arch['layers'] : nil
          relations = (arch.class == Hash and arch.has_key? 'relations') ? arch['relations'] : arch
  
          # output the layers themselves to setup the hierarchy
          if layers
          %>
  
negative.code:         %>
          {
            node[fillcolor="<%=color%>"]
            // layer name's color needs to be overridden here else the top level color will inherit.
            rank=same;<%=lname%>[color=none fontcolor="<%=color%>" fillcolor=none];<%=components.join(';')%>
          };
          <%    
            end
          end 
        end #if layers
        
          relations.each do |line|
          #tried scan to allow for quoted strings. while this works here, yaml doesnt allow parts of an array entry being quoted. so reverting back to old split by space logic. g
          #words = line.scan(/('.*?'|".*?"|\S+)/)
          # scan returns an array of matched arrays, so each word must be got as the first element of each group found
          #component1 = words[0][0]
          #relation = words[1][0]
          #component2 = words[2][0]
          #ignore any more.
          words = line.split
          component1 = words[0]
          relation = words[1]
          component2 = words[2]
          #ignore any more.
        
  %>
      <%=component1%> -> <%=component2%> [label="<%=relation%>",color=gray, fontname=Sans fontsize="10"]
        <%end if relations%>
  }
  <%end%>