colorTransform update

I cant seem to update the color of some simple graphics, which has me pretty stumped now.

Code:

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        import flash.geom.ColorTransform;
        import flash.display.*;
        import flash.events.*;

public class objects extends Sprite {
                public var bigSquare:Sprite = new Sprite();
                public var smallSquare:Sprite = new Sprite();
               
               
                public function objects():void {
                        bigSquare.graphics.beginFill(0x2c6ccc);
                        bigSquare.graphics.drawRect(20,50,200, 200);
                       
                       
                        smallSquare.graphics.beginFill(0x4cc5cc);
                        smallSquare.graphics.drawRect(300,170,100, 100);
                       
                        addChild(smallSquare);
                        addChild(bigSquare);
                       
                }
               
                public function changeColor(object, color:uint):void {
                       
                        var colorTransform:ColorTransform = bigSquare.transform.colorTransform;
            colorTransform.color = color;
            bigSquare.transform.colorTransform = colorTransform;
                        trace(colorTransform.color);
                        bigSquare.x = 500;
                       
                       
                }
        }

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when the changeColor function runs I get the trace output showing the selected color, however nothing happens to the graphics. I even added the line bigSquare.x = 500 to see if that had any effect but nothing. What am I missing?? thanks.

You need to create a new Colortransform instance, which you are not doing. here is the corrected script:

PHP Code:

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public function changeColor (object:Object, color:uint):void
{
    var colorTransform:ColorTransform = new ColorTransform();
    colorTransform.color = color;
    object.transform.colorTransform = colorTransform;
    trace (colorTransform.color);
} 


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