anchor.diff:  panel(modules, Context) ->
       modules_panel(Context);
   panel(system, Context) ->
  -    system_panels(Context);
  +    system_panel(Context);
   panel(stats, Context) ->
       stats_panel(Context);
  +panel(dispatch, Context) ->
  +    dispatch_panel(Context);
   panel(_, _Context)->
       undefined.
   
  
positive.code:     #zdt_panel{content=Content, dom_id="zdtb-modules", nav_title="Modules", 
              nav_subtitle=ActiveModules, url="", has_content=true}.
  
  system_panels(Context) ->
      Cmd = "ps -e -o pcpu -o pid -o user -o args",
      Content = z_template:render("panels/system.tpl", [], Context),
      #zdt_panel{content=Content, dom_id="zdtb-system", nav_title="System",
             nav_subtitle="CPU usage", url="", has_content=true}.
  
negative.code: -spec panels() -> [PanelName::atom()].
  panels()->
      ?ZDTB_PANELS.
  
  %% @doc Construct a debug panel
  -spec panel(PanelName::atom(), #context{}) -> #zdt_panel{}.
  panel(sql, Context) ->
  