This is an old revision of the document!
“Redmine is a flexible project management web application”
this steps work in squeeze as well (02.2012):
embed HTML:
{{html(<br/><br/>)}}
inject an external JS or CSS file:
{{js_url('http://www.domain.com/js/widget.js')}} {{css_url('http://www.domain.com/css/styles.ui.css')}}