una/studio/template/form_view_iu_preview.html

<bx_if:show_empty>
    <div class="bx-form-input-preview-empty bx-def-font-small bx-def-color-ft-gray-l3">
        <bx_text:_adm_txt_form_view_iu_preview_empty />
    </div>
</bx_if:show_empty>
<bx_if:show_image>
    <div class="bx-form-input-preview">
        <img src="__url__" />
        <bx_if:show_action_delete>
            <p>
                <button type="button" class="bx-btn bx-btn-small" onclick="javascript:__action__">
                    <bx_text:_adm_txt_form_view_iu_delete />
                </button>
            </p>
        </bx_if:show_action_delete>
    </div>
</bx_if:show_image>