<?xml version="1.0" encoding="utf-8"?>
<mx:Application name="TextArea_backgroundDisabledColor_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle" viewSourceURL="srcview/index.html">

    <mx:String id="lorem" source="lorem.txt" />

    <mx:ApplicationControlBar dock="true">
        <mx:Form styleName="plain" backgroundAlpha="0.0">
            <mx:FormItem label="backgroundAlpha:">
                <mx:HSlider id="slider"
                        minimum="0.0"
                        maximum="1.0"
                        value="1.0"
                        snapInterval="0.01"
                        tickInterval="0.1"
                        liveDragging="true" />
            </mx:FormItem>
            <mx:FormItem label="enabled:">
                <mx:CheckBox id="checkBox"
                        selected="true" />
            </mx:FormItem>
        </mx:Form>
    </mx:ApplicationControlBar>

    <mx:TextArea id="textArea"
            text="{lorem}"
            backgroundAlpha="{slider.value}"
            enabled="{checkBox.selected}"
            width="100%"
            height="100%" />

</mx:Application>