FusionCharts - Increasing size of icons for legend keys, in multi-series charts

Created using FusionCharts Suite XT - www.fusioncharts.com

HTML

<script src="http://static.fusioncharts.com/code/latest/fusioncharts.js"></script>
<script src="http://static.fusioncharts.com/code/latest/fusioncharts.charts.js"></script>
<script src="http://static.fusioncharts.com/code/latest/themes/fusioncharts.theme.fint.js"></script>
<!-- 
Increasing size of icons for legend keys, in multi-series charts. 
    
    Attribute:
        # legendIconScale - Number between 0-5
-->
<div id="chart-container">FusionCharts will render here</div>

JavaScript

var categoryData = [
    {
        label:"Category 1",
        value:85
    },
    {
        label:"Category 2",
        value:67
    },
    {
        label:"Category 3",
        value:30
    },
    {
        label:"Category 4",
        value:29
    },
    {
        label:"Category 5",
        value:27
    },
    {
        label:"Category 6",
        value:24
    },
    {
        label:"Category 7",
        value:18
    },
    {
        label:"Category 8",
        value:18
    },
    {
        label:"Category 9",
        value:11
    },
    {
        label:"Category 10",
        value:10
    },
    {
        label:"Category 11",
        value:9
    },
    {
        label:"Category 12",
        value:5
    },
    {
        label:"Category 13",
        value:4
    },
    {
        label:"Category 14",
        value:4
    },
    {
        label:"Category 15",
        value:4
    },
    {
        label:"Category 16",
        value:3
    },
    {
        label:"Category 17",
        value:2
    }
];
FusionCharts.ready(
	function () {
    	var alertCategoryBarChart = new FusionCharts({
			type: 'bar2d',
			renderAt: 'chart-container',
			id: 'categoryBars',
			width: '550',
			height: '320',
			dataFormat: 'json',
			containerBackgroundOpacity :"0",
			dataSource: {
				chart: {
					"paletteColors":"79AFDE",
					"divlinecolor": "AAA6A1",
					"tooltipbordercolor": "FFFFFF",
					"showalternatevgridcolor": "0",
					"showXAxisLine": "1",
					"showYAxisLine": "1",
					"showplotborder": "0",
					"placevaluesinside": "0",
					"showcanvasborder": "0",
					"plotgradientcolor": "",
					"canvasborderalpha": "0",
					"showBorder": "0",
					"baseFontSize": "14",
					"baseFontColor": "FFFFFF",
					"outCnvBaseFontColor": "333333",
					"showVLineLabelBorder":"1",
					"labelPadding": "10",
					"plotSpacePercent": "40",
					"valueFontColor": "79afde",
					"valueBgColor": "F3F1F1",
					"formatNumberScale": "0",
					"bgAlpha": "0",
					"canvasBgAlpha":...