I have the following settings for my pie graph.

ON GRAPH SET GRAPHSTYLE *
setFillColor(getSeries(0), new Color(172,0,62));
setFillColor(getSeries(1), new Color(84,49,35));
setFillColor(getSeries(2), new Color(218,213,204));
setFillColor(getSeries(3), new Color(114,103,82));
setFillColor(getSeries(4), new Color(228,236,202));
setFillColor(getSeries(5), new Color(220,229,242));
setFillColor(getSeries(6), new Color(247,242,187));
setFillColor(getSeries(7), new Color(172,0,62));
setFillColor(getSeries(8), new Color(84,49,35));
setFillColor(getSeries(9), new Color(218,213,204));
setFillColor(getSeries(10), new Color(114,103,82));
setFillColor(getSeries(11), new Color(228,236,202));
setFillColor(getSeries(12), new Color(220,229,242));
setFillColor(getSeries(13), new Color(247,242,187));
setFillColor(getSeries(14), new Color(172,0,62));
setPieSorting(3);
setFontSize(getPieSliceLabel(),14);
setFontStyle(getPieSliceLabel(),2);
setFontSize(getPieLabel(),14);
setFontStyle(getPieLabel(),2);
setFontSize(getDataText(),14);
setMarkerDisplay(true);
setConnectLineMarkers(false);
setConnectScatterMarkers(false);
setO1LabelDisplay(false);
setO1MajorGridDisplay(true);
setO1MajorGridStyle(0);
setO1MinorGridDisplay(false);
setAxisAssignment(0,0);
setY1LabelDisplay(false);
setY1MajorGridDisplay(true);
setY1MajorGridStyle(0);
setY1MinorGridDisplay(false);
setTextFormatPreset(getY1Label(),-1);
setTextFormatPattern(getY1Label(),"#.##");
setPieFeelerTextDisplay(1);
setPieLabelDisplay(3);
setTitleString("Claim Payment Summary");
setTextJustHoriz(getTitle(),1);
setTitleAutofit(true);
setLegendTextAutofit(true);
setTextFormatPreset(getPieSliceLabel(),2);
setRiserBorderMode(1);
setSeriesDefaultTransparentBorderColor(true);
setUseSeriesBorderDefaults(true);
setLegendDisplay(false);
setAutofit(getTitle(),false);
setFontName(getTitle(),"Arial");
setFontName(getPieSliceLabel(),"Arial");
setFontName(getPieLabel(),"Arial");
setFontSize(getTitle(),18);
setFontSizeAbsolute(getTitle(),true);
setFontSizeAbsolute(getPieSliceLabel(),true);
setFontSizeAbsolute(getPieLabel(),true);
setFontStyle(getTitle(),2);
setPlace(false);
ENDSTYLE

I have customized my colors, there are 2 sets of the same 7 colors. Sometimes when creating the graph 2 slices that are next to each other have the same color. Is there a way to prevent this from happening.