title: Woocommerce add to wish list heart icon disappears
body: <p>I have updated my WordPress version to <strong>4.9.4</strong> and also updated <strong>YITH WooCommerce Wishlist</strong> plugin now the issue is that first a heart icon was there for add to wishlist but now only text coming.</p>
  
  <p>I want to change it back to that heart icon. I have also copied the <code>add-to-wishlist-button.php</code> file into my <code>theme/woocommerce</code> directory but it is not working for me. </p>
  
  <p>I searched a lot but found nothing and as a last option, I am posting this question. I have also tried the following solution but it is also not working for me.
  <a href="https://stackoverflow.com/questions/40174732/replace-add-to-wishlist-text-with-heart-icon-woocommerce">Displaying Heart icon</a></p>
  
  <p><strong>EDIT:</strong>
           Here is the code that is displaying that button.</p>
  
  <pre><code>&lt;a href="&lt;?php echo esc_url( add_query_arg( 'add_to_wishlist', $product_id ) )?&gt;" rel="nofollow" data-product-id="&lt;?php echo $product_id ?&gt;" data-product-type="&lt;?php echo $product_type?&gt;" class="&lt;?php echo $link_classes ?&gt;" &gt;
  &lt;?php echo $icon ?&gt;
  &lt;?php echo $label ?&gt;
  &lt;/a&gt;
  &lt;img src="&lt;?php echo esc_url( YITH_WCWL_URL . 'assets/images/wpspin_light.gif' ) ?&gt;" class="ajax-loading" alt="loading" width="16" height="16" style="visibility:hidden" /&gt;
  </code></pre>