Color passengers based on how long they have been waiting, and other sweet stuff
Never run scripts found on the internet in your developer console unless you are completely confident about what you are doing. For more information see Wikipedia: Self-XSS
Just paste this line of code in your developer console, and run your ai script once again.
$('head').append('<script src="http://rawgit.com/sorgloomer/elevator-saga-debug-ui/master/injector.js"></script>');