fpf_message_box_rate += '<p class="rate"><a href="<?php echo esc_url( apply_filters( 'flexible_product_fields/short_url', '#', 'fpf-settings-widget-review-stars' ) ); ?>" target="_blank"><span class="dashicons dashicons-star-filled"></span><span class="dashicons dashicons-star-filled"></span><span class="dashicons dashicons-star-filled"></span><span class="dashicons dashicons-star-filled"></span><span class="dashicons dashicons-star-filled"></span></a></p>';
    fpf_message_box_rate += '<p><?php printf( __( 'If you want to continue using Flexible Product Fields for free, %splease add a review%s. You will help us support the free version. Thank you.', 'flexible-product-fields' ),  '<a href="' . esc_url( apply_filters( 'flexible_product_fields/short_url', '#', 'fpf-settings-widget-review-link' ) ) . '" target="_blank">', '</a>' ); ?></p>';