For ones of you who want to get the same visual result as the example in this tutorial with the alpha 1.0 release, here is a version of the CelsiusConverter class that uses the "SPAS" look and Feel:

package {
import org.flashapi.swing.*;
import org.flashapi.swing.event.*;
import org.flashapi.swing.plaf.spas.*;
public class CelsiusConverter extends Popup {
public function CelsiusConverter() {
super("Convert Celsius to Fahrenheit", 250);
initialize();
}
private var _result:Label;
private var _input:TextInput;
private function initialize():void {
setLaf(SpasWindowUI);
autoHeight = true;
padding = horizontalGap = verticalGap = 10;
_input = new TextInput("0");
_input.maxChars = 5;
_input.restrict = "0-9";
_result = new Label("fahrenheit");
var _btn = new Button("Convert", _input.width);
_btn.setLaf(SpasButtonUI);
var celsiusLabel:Label = new Label("celsius");
addGraphicElements(_input, celsiusLabel, _btn, _result);
eventCollector.addEvent(_btn, UIMouseEvent.CLICK, convertTemp);
}
private function convertTemp(event:UIMouseEvent):void {
var temp:Number = Number(_input.label);
_result.label = String(temp * 1.8 + 32) + " fahrenheit";
}
}
}