how to do about include 'mb-settings-page' in themes?It does not work.
define( 'RWMB_DIR', get_template_directory() . '/meta-box/' );
define( 'RWMB_URL', get_template_directory_uri() . '/meta-box/' );
require RWMB_DIR . 'meta-box.php';
require get_template_directory().'/mb-settings-page/mb-settings-page.php';