<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/01/11/setting-the-focus-blend-mode-on-a-textarea-control-in-flex/ -->
<mx:Application name="TextArea_focusBlendMode_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle" viewSourceURL="srcview/index.html">

    <mx:ApplicationControlBar dock="true" styleName="plain">
        <mx:Form styleName="plain">
            <mx:FormItem label="focusThickness:">
                <mx:HSlider id="slider"
                        minimum="0"
                        maximum="24"
                        value="10"
                        snapInterval="1"
                        tickInterval="1"
                        change="textArea.setFocus();" />
            </mx:FormItem>
            <mx:FormItem label="focusBlendMode:">
                <mx:ComboBox id="comboBox"
                        selectedIndex="10"
                        change="textArea.setFocus();">
                    <mx:dataProvider>
                        <mx:Array>
                            <mx:String>{BlendMode.ADD}</mx:String>
                            <mx:String>{BlendMode.ALPHA}</mx:String>
                            <mx:String>{BlendMode.DARKEN}</mx:String>
                            <mx:String>{BlendMode.DIFFERENCE}</mx:String>
                            <mx:String>{BlendMode.ERASE}</mx:String>
                            <mx:String>{BlendMode.HARDLIGHT}</mx:String>
                            <mx:String>{BlendMode.INVERT}</mx:String>
                            <mx:String>{BlendMode.LAYER}</mx:String>
                            <mx:String>{BlendMode.LIGHTEN}</mx:String>
                            <mx:String>{BlendMode.MULTIPLY}</mx:String>
                            <mx:String>{BlendMode.NORMAL}</mx:String>
                            <mx:String>{BlendMode.OVERLAY}</mx:String>
                            <mx:String>{BlendMode.SCREEN}</mx:String>
                            <!--
                            <mx:String>{BlendMode.SHADER}</mx:String>
                            -->
                            <mx:String>{BlendMode.SUBTRACT}</mx:String>
                        </mx:Array>
                    </mx:dataProvider>
                </mx:ComboBox>
            </mx:FormItem>
        </mx:Form>
    </mx:ApplicationControlBar>

    <mx:TextArea id="textArea"
            text="The quick brown fox jumps over the lazy dog."
            focusThickness="{slider.value}"
            focusBlendMode="{comboBox.selectedItem}" />

</mx:Application>