markup_header example

        if ( $translate && ( empty( $value ) || ! $this->load_textdomain() ) ) {
            $translate = false;
        }

        if ( $translate ) {
            $value = $this->translate_header( $header, $value );
        }

        if ( $markup ) {
            $value = $this->markup_header( $header, $value, $translate );
        }

        return $value;
    }

    /** * Sanitizes a theme header. * * @since 3.4.0 * @since 5.4.0 Added support for `Requires at least` and `Requires PHP` headers. * @since 6.1.0 Added support for `Update URI` header. * * @param string $header Theme header. Accepts 'Name', 'Description', 'Author', 'Version', * 'ThemeURI', 'AuthorURI', 'Status', 'Tags', 'RequiresWP', 'RequiresPHP', * 'UpdateURI'. * @param string $value Value to sanitize. * @return string|array An array for Tags header, string otherwise. */