Pie chart: setting colors of series via DBF

Hello,
I am working with Crystal Reports XI on a report that's creating a pie chart from a DBF file.
The DBF, the report obtains it's data from, can contain a variable number of data. Due to this, the number of series, the chart is made up of, cannot be predictet in advance.
Now, my question is:
Is it possible to make each of the chart's series retrieve it's own color from a cell in the DBF file?
In advance, thanks for your help!
Sascha.

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