Getting-WLColor-to-display-the-right-color-on-a-plot

I'm trying to display WLColor.Lime on a plot, but it displays as dark green instead of Lime as directed. DrawDot displays it correctly, but PlotTimeSeries does not. I tried adding WLColor.Lime.Brighten(0.9) to the PlotTimeSeries parameter, but it doesn't really help. So what's the trick to making WLColor.Lime look like Lime as directed on a plot?

CODE:
         for (int bar = 1; bar < bars.Count; bar++)
         {
            if (medianDiff[bar] < 0.0  &&  dipValue[bar] != dipValue[bar-1])
               if (medianSlope[bar] > 0.0)
               {
                  DrawDot(bar, bars.Low[bar], WLColor.Lime, 4);
                  dipsBullish[bar] = range[bar];
               }
               else
               {
                  DrawDot(bar, bars.Low[bar], WLColor.Orange, 4);               
                  dipsBearish[bar] = range[bar];
               }
         }
         PlotTimeSeries(dipsBullish, "Bullish dips", "Range", WLColor.Lime, PlotStyle.Dots);
         PlotTimeSeries(dipsBearish, "Bearish dips", "Range", WLColor.Orange, PlotStyle.Dots);