anchor.diff:        </div>
   
         <div class="btn-group card">
  -        <a class='dropdown-trigger btn white black-text' href='#' data-target='universe-filter-dropdown'>
  +        <a
  +          class='dropdown-trigger btn white black-text tooltipped <%= @universe_scope.present? ? Universe.color : 'white' %> lighten-5'
  +          href='#'
  +          data-position="bottom"
  +          data-delay="500"
  +          data-tooltip="Filter by universe"
  +          data-target='universe-filter-dropdown'>
             <i class="material-icons <%= Universe.color %>-text"><%= Universe.icon %></i>
  +          <%= @universe_scope.try(:name) if @universe_scope %>
           </a>
           <ul id='universe-filter-dropdown' class='dropdown-content'>
  -          <li><a href="#!">All Universes</a></li>
  +          <li>
  +            <a href="?universe=all" class="<%= Universe.color %>-text">
  +              <i class="material-icons <%= Universe.color %>-text"><%= Universe.icon %></i>
  +              All Universes
  +            </a>
  +          </li>
             <li class="divider" tabindex="-1"></li>
             <% @current_user_content.fetch('Universe', []).each do |universe| %>
  +            <% next unless universe.becomes(Universe).send(content_type.name.downcase.pluralize).any? %>
               <li>
  -              <a href="#!" data-universe-id="<%= universe.id %>">
  +              <a href="?universe=<%= universe.id %>" data-universe-id="<%= universe.id %>" class="<%= Universe.color %>-text">
                   <i class="material-icons <%= Universe.color %>-text"><%= Universe.icon %></i>
  +                <span class="grey-text">in</span>
                   <%= universe.name %>
                 </a>
               </li>
  
positive.code:       </div>
  
        <div class="btn-group card">
          <a class='dropdown-trigger btn <%= @filtered_page_tags.nil? ? 'white' : content_type.color %> lighten-4 black-text' href='#' data-target='tag-filter-dropdown'>
            <i class="material-icons red-text">loyalty</i>
            <%= @filtered_page_tags.try(:first).try(:tag) %>
          </a>
  
negative.code:         </ul>
        </div>
  
        <!-- <a class='btn grey lighten-2 black-text tooltipped'
           href='#'
           data-position="bottom"
           data-delay="500"
           data-tooltip="Favoriting pages is a new feature coming soon.">
          <i class="material-icons amber-text">star_outline</i>
        </a> -->
  
        &nbsp;
  
        <!-- <div class="btn-group card">
          <a class='btn white grey-text tooltipped'
             href='#'
             data-position="bottom"
  