LcShopBundle/ShopBundle/Resources/views/backend/default/action.html.twig

<a class="btn {{ is_dropdown|default(false) ? 'dropdown-item' }} {{ action.css_class|default('btn-default') }}" data-toggle="tooltip"
   title="{{ action.label|trans(arguments = trans_parameters|merge({ '%entity_id%': item_id }), domain = translation_domain) }}"
   href="{{ action_href }}" target="{{ action.target }}">
    {%- if action.icon %}<i class="fa fa-fw fa-{{ action.icon }}"></i> {% endif -%}
</a>