_delete_attachment_theme_mod( int $id )

3455function _delete_attachment_theme_mod( $id ) {3456	$attachment_image = wp_get_attachment_url( $id );3457	$header_image     = get_header_image();3458	$background_image = get_background_image();3459	$custom_logo_id   = (int) get_theme_mod( 'custom_logo' );3460	$site_logo_id     = (int) get_option( 'site_logo' );3461 3462	if ( $custom_logo_id && $custom_logo_id === $id ) {3463		remove_theme_mod( 'custom_logo' );3464		remove_theme_mod( 'header_text' );3465	}3466 3467	if ( $site_logo_id && $site_logo_id === $id ) {3468		delete_option( 'site_logo' );3469	}3470 3471	if ( $header_image && $header_image === $attachment_image ) {3472		remove_theme_mod( 'header_image' );3473		remove_theme_mod( 'header_image_data' );3474	}3475 3476	if ( $background_image && $background_image === $attachment_image ) {3477		remove_theme_mod( 'background_image' );3478	}3479}