The format for an empty TextField object is specified by assigning a TextFormat object to the TextField object's defaultTextFormat variable
package{ import flash.display.Sprite; import flash.text.*; public class Main extends Sprite{ public function Main(){ var t:TextField = new TextField( ); t.width = 300; var defaultFormat:TextFormat = new TextFormat( ); defaultFormat.size = 20; defaultFormat.color = 0xFF0000; defaultFormat.font = "Verdana"; t.defaultTextFormat = defaultFormat; t.text = "This is 20 pt red Verdana"; addChild(t); } } }