__( 'Get Smush Pro ', 'wp-smushit' ), 'target' => '_blank', 'classes' => array( 'sui-button', 'wp-smush-upgrade-modal-cta', 'sui-button-grey', 'sui-button-purple', ), 'show_icon' => true, ); $class_string = implode( ' ', $cta_config['classes'] ); ?>