You can set the series color with the following style mxml:
chartSeriesStyles: Series1, Series2, Series3, Series4;
Or you could set a particular series color in AS:
This code assumes that your series id = firstSeries.
using mxml, i connot change colors in runtime . however i can
the code you wrote: firstSeries.setStyle('fill',0x993300);
is applied to a set of series which are firstSeries.
how i can refer to single series in firstSeries so that i can
change its color ?