$open_sans = _x( 'on', 'Open Sans font: on or off', 'Divi' );

    if ( 'off' !== $open_sans ) {
        $font_families = array();

        if ( 'off' !== $open_sans )
            $font_families[] = 'Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800';

        $protocol = is_ssl() ? 'https' : 'http';
        $query_args = array(
            'family' => implode( '%7C', $font_families ),
            'subset' => 'latin,latin-ext',
        );
        $fonts_url = add_query_arg( $query_args, "$protocol://fonts.googleapis.com/css" );
    }

    return $fonts_url;
}
endif;