{% macro icon_link(href, icon, label, title='', extra_class='') -%}
  <a class="icon-button {{ extra_class }}"
     href="{{ href }}"
     title="{{ title if title else label }}"
     aria-label="{{ label }}">
    <img class="dash-icon" src="{{ icon }}" alt="" />
  </a>
{%- endmacro %}

{% macro icon_submit(icon, label, title='', extra_class='') -%}
  <button type="submit"
          class="icon-button {{ extra_class }}"
          title="{{ title if title else label }}"
          aria-label="{{ label }}">
    <img class="dash-icon" src="{{ icon }}" alt="" />
  </button>
{%- endmacro %}