我是 FusionCharts 的新手。如何使下面标有红色矩形的背景透明？目前我所能做的就是使外部背景透明，但中心部分不是。
以及如何自定义字体颜色？我的代码：
FusionCharts.setCurrentRenderer('javascript');
var chart = new FusionCharts("../content/charts/MultiAxisLine.swf", "ChartId", "740", "231", "0", "0");
chart.setDataXML("<chart bgAlpha='0,0' caption='' showBorder='0' lineThickness='1' showValues='0' formatNumberScale='0' labelDisplay='ROTATE' slantLabels='1' rotateValues='1' borderThickness='0' alternateHGridColor='FCB541' alternateHGridAlpha='20' divLineColor='FCB541' divLineAlpha='50' canvasBorderColor='666666' baseFontColor='3E3E3F'><categories><category label='Oct10'/><category label='Nov10'/><category label='Dec10'/><category label='Jan11'/><category label='Feb11'/><category label='Mar11'/><category label='Apr11'/><category label='May11'/><category label='Jun11'/><category label='Jul11'/><category label='Aug11'/><category label='Sep11'/></categories><axis title='MAPE' titlePos='left' tickWidth='10' divlineisdashed='1' numberSuffix='%' color='1D8BD1'> <dataset seriesName='MAPE %' color='1D8BD1' anchorBorderColor='1D8BD1' anchorBgColor='1D8BD1'><set value='83'/><set value='68'/><set value='63'/><set value='68'/><set value='81'/><set value='95'/><set value='67'/><set value='72'/><set value='86'/><set value='69'/><set value='86'/><set value='69'/></dataset></axis><axis title='MAD' titlePos='left' tickWidth='10' divlineisdashed='1' color='F1683C'> <dataset seriesName='MAD' color='F1683C' anchorBorderColor='F1683C' anchorBgColor='F1683C'> <set value='5'/><set value='4'/><set value='3'/><set value='4'/><set value='7'/><set value='9'/><set value='6'/><set value='4'/><set value='4'/><set value='7'/><set value='7'/><set value='4'/></dataset></axis><axis title='RMSE' titlepos='RIGHT' axisOnLeft='0' tickWidth='10' divlineisdashed='1' color='2AD62A'> <dataset seriesName='RMSE' color='2AD62A' anchorBorderColor='2AD62A' anchorBgColor='2AD62A'><set value='11'/><set value='10'/><set value='10'/><set value='13'/><set value='20'/><set value='26'/><set value='18'/><set value='10'/><set value='10'/><set value='24'/><set value='23'/><set value='15'/> </dataset> </axis></chart>");
chart.setTransparent(true)
chart.render("chartdiv1");
