anchor.diff:                          </div>
                         </div>
   
  -                      <div class="row">
  -                        <div class="col s12 m6">
  -
  -                        </div>
  -                      </div>
                         <% if attribute_field.label.start_with?('Private') %>
                           <div class="row">
                             <div class="col s12">
  
positive.code:                             <div class="card-panel <%= klass.color %>">
                                <div class="valign-wrapper white">
                                  <i class="material-icons" style="margin: 0 10px;">link</i>
                                  Links to: <%= link_to klass_name, attribute_customization_path(content_type: klass_name.downcase), style: 'padding: 3px 10px' %>
                                </div>
                              </div>
                            </div>
  
negative.code: 
            <div class="row">
              <div class="col s12">
                <ul class="collapsible">
                  <li>
                    <div class="collapsible-header">
                      <i class="material-icons <%= @content_type_class.color %>-text"><%= attribute_category.icon %></i>
                      Customize this category's icon
                    </div>
                    <div class="collapsible-body">
                      <p class="grey-text text-darken-2">
                        You can now choose one of over 300 icons to use as the icon for this category. Use the icon picker below to find the perfect icon for you, and
                        use the code to quickly find it again or share it with others.
                      </p>
                      <%= form_for(attribute_category, method: :put) do |f| %>
                        <div class="input-field input-group iconpicker-container">
                          <i class="material-icons prefix"><%= attribute_category.icon %></i>
                          <%= f.label :label, 'Icon code' %>
                          <%= f.text_field :icon, class: 'form-control iconpicker-element iconpicker-input', data: { placement: 'bottom' } %>
                        </div>
                        <%= f.submit 'Save icon', class: 'btn white black-text' %>
                      <% end %>
                    </div>
                  </li>
                </ul>
              </div>
            </div>
          <% end %>
  
          <div class="row">
            <div class="col s12">
              <ul class="collapsible">
                <li class="<%= 'active' if attribute_category.hidden? %>">
                  <div class="collapsible-header">
                    <i class="material-icons <%= @content_type_class.color %>-text"><%= attribute_category.icon %></i>
                    Hide or show this category
                  </div>
                  <div class="collapsible-body">
                    <p class="grey-text text-darken-2">
                      You can also choose to hide or show this entire category. When hiding, any existing answers you have to fields in this category will also be hidden, but not deleted.
                      You can recover them by un-hiding this category at any time.
                    </p>
                    <%= form_for(attribute_category, method: :put) do |f| %>
                      <%= f.hidden_field :hidden, value: !hidden_category %><%# flip the bit %>
                      <%= f.submit (hidden_category ? 'Show' : 'Hide') + ' this category', class: 'btn white black-text' %>
                    <% end %>
                  </div>
                </li>
              </ul>
            </div>
          </div>
        </div>
  