Cannikin

I'm using the Multi-level Pie Chart http://www.fusioncharts.com/explore/multilevel-pie-chart/ I'd like to be able to set some labels to be a dark color and some to be a light color (depending on the color of the background pie slice). Is there a setting to do this? I tried setting "basefontcolor" for each individual label, but it didn't have any effect. Likewise, I tried a bunch of other variations "textcolor", "labelcolor" etc., but nothing. Thanks for any help!