public function product_cat_column( $columns, $column, $id ) {
		if ( 'thumb' === $column ) {
			// Prepend tooltip for default category.
			$default_category_id = absint( get_option( 'default_product_cat', 0 ) );

			if ( $default_category_id === $id ) {
				$columns .= wc_help_tip( __( 'This is the default category and it cannot be deleted. It will be automatically assigned to products with no category.', 'woocommerce' ) );
			}

			$thumbnail_id = get_term_meta( $id, 'thumbnail_id', true );

			if ( $thumbnail_id ) {
				$image = wp_get_attachment_thumb_url( $thumbnail_id );
			} else {
				$image = wc_placeholder_img_src();
			}

			// Prevent esc_url from breaking spaces in urls for image embeds. Ref: https://core.trac.wordpress.org/ticket/23605 .
			$image    = str_replace( ' ', '%20', $image );
			$columns .= '<img src="' . esc_url( $image ) . '" alt="' . esc_attr__( 'Thumbnail', 'woocommerce' ) . '" class="wp-post-image" height="48" width="48" />';
		}
		if ( 'handle' === $column ) {
			$columns .= '<input type="hidden" name="term_id" value="' . esc_attr( $id ) . '" />';
		}
		return $columns;
	}