anchor.diff:                    <% Label::COLORS.each_with_index do |color, index| %>
                       <li>
                         <%= link_to label_path(label, color: index), method: :patch, remote: true do %>
  -                        <i class="fa fa-square" style="color: <%= color %>"></i>
  +                        <i class="fa fa-circle-o" style="color: <%= color %>"></i>
                         <% end %>
                       </li>
                     <% end %>
  
positive.code:     <div class="row collapse">
        <% if user_signed_in? %>
          <aside class="hide-for-small medium-3 large-2 columns">
            <ul class="off-canvas-list mt">
              <li>
                <%= active_elem_if :a, params[:status] == 'open' &&
                    params[:assignee_id].to_i == 0,
  
negative.code:               %>
                <li>
                  <a href="<%= tickets_url(p) %>" class="<%= 'active ' if params[:label_id].to_i == label.id %>hover-icon-a">
                    <i class="fa fa-circle-o" style="color: <%= label.color %>"></i>
                    <%= label.name %>
                    <i data-dropdown="label-<%= label.id %>" class="fa fa-toggle-down hover-icon-i"></i>
                  </a>
  