Draws a rectangle with background and/or border. The ChartArea ist similar to the PlotArea but contains also the backgrounds of all the axes active in the current chart.
<chartArea>
<color>$WHITE</color>
<borderWidth>1</borderWidth>
<borderStyle>bold</borderStyle>
<borderColor>$BLACK</borderColor>
<style>style_2</style>
</chartArea>
All elements not affected by ChartAreaOption have been grayed out.