Ticket #21406: 21406.patch

wp-admin/edit-tags.php

@@ -388 +388 @@
         do_action('add_tag_form_fields', $taxonomy);
 do_action($taxonomy . '_add_form_fields', $taxonomy);
 
-submit_button( $tax->labels->add_new_item, 'button' );
+submit_button( $tax->labels->add_new_item, 'button-primary' );
 
 // Back compat hooks. Deprecated in preference to {$taxonomy}_add_form
 if ( 'category' == $taxonomy )