frameworks/projects/spark/asdoc/en_US/spark/effects/examples/AnimateColorEffectExample.mxml

<?xml version="1.0"?>
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<!-- Simple example to demonstrate the s:AnimateColor class. -->
<s:Application
	xmlns:fx="http://ns.adobe.com/mxml/2009"
    xmlns:mx="library://ns.adobe.com/flex/mx"
    xmlns:s="library://ns.adobe.com/flex/spark">

    <fx:Declarations>
        <s:AnimateColor id="colorEffect" targets="{[examplePanel, targetLabel, detailText]}"
	        colorFrom="0x0000FF" colorTo="0xFF0000" repeatCount="2" repeatBehavior="reverse"
	        effectStart="playButton.enabled=false" effectEnd="playButton.enabled=true;"/>
        <s:AnimateColor id="colorEffectBackground" colorPropertyName="borderColor"
	        target="{examplePanel}" colorFrom="0xBBBBBB" colorTo="0xFF4444" repeatCount="2"
	        repeatBehavior="reverse" effectStart="playButton.enabled=false"
	        effectEnd="playButton.enabled=true;"/>
    </fx:Declarations>

    <s:Panel id="examplePanel"
    	title="AnimateColor Effect Example"
    	width="75%" height="75%">

        <s:HGroup top="5">
            <!-- Our target to affect-->
            <s:VGroup id="targetBox" width="50%"  horizontalAlign="center">
                <s:Label id="targetLabel" text="Some Image" fontSize="14"/>
                <s:BitmapImage id="targetImg" source="@Embed(source='assets/back2.png')"/>
            </s:VGroup>
            <s:VGroup id="detailsBox" width="50%" left="0">
                <s:Label id="detailText" width="99%" color="blue"
		        	text="The:AnimateColor effect changes the color of a target using the following parameters: colorFrom, colorTo. Click 'Animate Color' to watch the effect."/>
            </s:VGroup>
        </s:HGroup>

        <s:Rect left="0" right="0" bottom="0" height="30">
            <s:fill>
                <s:LinearGradient rotation="90">
                    <s:GradientEntry color="0xE2E2E2" />
                    <s:GradientEntry color="0xD9D9D9" />
                </s:LinearGradient>
            </s:fill>
        </s:Rect>
        <s:Button id="playButton"
        	left="5" bottom="5"
            label="Animate Color"
            click="colorEffect.play();colorEffectBackground.play();"/>
    </s:Panel>
</s:Application>