Orange border on Flex Candlestick Charts

<mx:series>
    <mx:CandlestickSeries>
    <mx:boxStroke>
        <mx:Stroke weight="1" color="black"/>
    </mx:boxStroke>
    </mx:CandlestickSeries>
</mx:series>

One thing not mentioned in the Flex CandlestickSeries documentation is how to change the border colour of each candlestick. So you end up with a horrible orange border by default. This can be removed with the boxStroke tag.