DataStyl
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Shows various 2D charts and allows interactive variance of style.

The sample creates various 2d charts by radio button selection and
demonstrates mouse tracking for each type of chart, for both the data
points and the legend.

Types of charts include XYPlot, Bar, Pie, Area, High-Low-Open-Close,
Candle, Polar, Radar, and Bubble.  Stacking is demonstrated for
appropriate chart types.
