apply_filters( 'frontpage_template_hierarchy' )

1597	if ( $is_custom ) {1598		/** This filter is documented in wp-includes/template.php */1599		return apply_filters( 'page_template_hierarchy', array( 'page', 'singular', 'index' ) );1600	}1601	if ( 'front-page' === $slug ) {1602		/** This filter is documented in wp-includes/template.php */1603		return apply_filters( 'frontpage_template_hierarchy', array( 'front-page', 'home', 'index' ) );1604	}1605 1606	$matches = array();1607 1608	$template_hierarchy = array( $slug );1609	// Most default templates don't have `$template_prefix` assigned.