<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
    xmlns:d="http://ns.adobe.com/fxg/2008/dt"
    xmlns:s="library://ns.adobe.com/flex/spark">
    
    <fx:Script>
        import spark.effects.interpolation.RGBInterpolator;
    </fx:Script>
    <fx:Declarations>
        <s:Animate id="mover" target="{button}" duration="1000">
            <s:SimpleMotionPath property="x" valueFrom="0" valueTo="100"/>
            <s:SimpleMotionPath property="y" valueTo="100"/>
            <s:SimpleMotionPath property="width" valueBy="20"/>
            <s:SimpleMotionPath property="color" valueTo="0xff0000"
                interpolator="{new RGBInterpolator()}"/>
        </s:Animate>
    </fx:Declarations>
    <s:Button id="button" label="Button" click="mover.play()"/>
</s:Application>