anchor.diff:      </div>
     <% end %>
   
  -  <a class='btn <%= 'yellow lighten-3' if params.key?(:favorite_only) %> black-text tooltipped'
  +  <a class='btn white <%= 'yellow lighten-3' if params.key?(:favorite_only) %> black-text tooltipped'
         href="<%= url_for(params.permit(:universe, :favorite_only).merge({favorite_only: params.key?(:favorite_only) ? nil : 1})) %>"
         data-position="bottom"
         data-delay="500"
  
positive.code:   <% if content_type.new.respond_to?(:universe) %>
      <div class="btn-group card">
        <a
          class='dropdown-trigger btn tooltipped <%= Universe.color if @universe_scope.present? %> lighten-5'
          href='#'
          data-position="bottom"
          data-delay="500"
  
negative.code:   <% if @page_tags.present? && @page_tags.any? %>
      <div class="btn-group card">
        <a
          class='dropdown-trigger btn white <%= content_type.color if @filtered_page_tags.present? %> lighten-4 black-text tooltipped'
          href='#'
          data-target='tag-filter-dropdown'
          data-position="bottom"
  