anchor.diff:  
         <ul class="nav navbar-nav">
           <li class="nav-item dropdown">
  -          <a class="nav-link dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true" aria-expanded="false"><%= t 'b.content' %></a>
  +          <a class="nav-link dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true" aria-expanded="false"><%= icon(:list, t('b.content')) %></a>
             <div class="dropdown-menu">
               <%= link_to t('b.pages'), backend_pages_path, class: 'dropdown-item' %>
               <%= link_to t('b.snippets'), backend_snippets_path, class: 'dropdown-item' %>
  
positive.code:         </li>
  
          <li class="nav-item dropdown">
            <a class="nav-link dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true" aria-expanded="false"><%= t 'b.settings' %></a>
            <div class="dropdown-menu">
              <%= link_to t('b.navigation'), backend_navigations_path, class: 'dropdown-item' %>
              <%= link_to t('b.admins'), backend_admins_path, class: 'dropdown-item' %>
  
negative.code:           </div>
          </li>
          <li class="nav-item dropdown pull-xs-right">
            <a class="nav-link dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true" aria-expanded="false"><%= icon(:user, current_admin.full_name) %></a>
            <div class="dropdown-menu">
              <%= link_to icon(:sign_out, t('b.logout')), backend_session_path(id: 42), method: :delete, data: { confirm: t('b.msg.confirm') }, class: 'dropdown-item' %>
            </div>
          </li>
        </ul>
  