-$default_theme = ((isset($a->config['system']['theme'])) ? $a->config['system']['theme'] : 'default');
-if((x($_SESSION,'theme')) && (! file_exists('view/theme/' . $_SESSION['theme'] . '/style.css')))
- unset($_SESSION['theme']);
-
-$a->page['htmlhead'] = replace_macros($a->page['htmlhead'], array(
- '$stylesheet' => $a->get_baseurl() . '/view/theme/'
- . ((x($_SESSION,'theme')) ? $_SESSION['theme'] : $default_theme)
- . '/style.css'
- ));