Question about paperjs, font-family for PointText

Hello

I create some text item, this is code:
var text = new PointText(new Point(50,50));
text.content = "tttext";

text.characterStyle = {
fontSize: 30,
fillColor: "#009"
}

Now, i want that, this text have for example font: "Verdana". tell me please, how to make this?

text.characterStyle = {
font: "Verdana",
fontSize: 30,
fillColor: "#009"
}

http://paperjs.org/reference/characterstyle

DaveyErwin
Thanks very much.