WooCommerce - Show the processing order count in the admin bar

<?php
// WooCommerce - Show the processing order count in the admin bar
add_action('admin_bar_menu', 'show_new_orders_in_admin_bar', 900 );
function show_new_orders_in_admin_bar( $wp_admin_bar ) {
  $order_count = wc_processing_order_count();
  $args = array(
      'id' => 'new_orders',
      'title' => 'Orders'.' <span class="order_count">'.$order_count.'</span>',
      'href' => 'https://topcode.co.uk/dev/wp-admin/edit.php?post_type=shop_order',
      'meta' => array(
          'class' => 'show_new_orders_in_admin_bar',
          'title' => 'Show new orders'
          )
  );
  $wp_admin_bar->add_node($args);
}
?>

/* Then some custom css to make it show in red */
#wpadminbar .order_count {
  display: inline-block;
  min-width: 13px;
  height: 17px;
  padding: 0 4px 4px;
  text-align: center;
  line-height: 1.6;
  background-color: #d63638;
  border-radius: 10px;
}
/* This will need an admin-side css plugin. */