shimmie2/ext/hellban/main.php

<?php
class HellBan extends Extension {
	public function onPageRequest(PageRequestEvent $event) {
		global $page, $user;

		if($user->can("hellbanned")) {
			$s = "";
		}
		else if($user->can("view_hellbanned")) {
			$s = "DIV.hb, TR.hb TD {border: 1px solid red !important;}";
		}
		else {
			$s = ".hb {display: none !important;}";
		}

		if($s) {
			$page->add_html_header("<style>$s</style>");
		}
	}
}
?>