Overlay
The appearance settings for the overlay of the series elements.
gradient?
"glass" | "none" | "roundedBevel" | "sharpBevel"
The gradient of the Chart series.
The supported values are:
"glass"—Applicable for the Bar, Column, and Candlestick series."none""roundedBevel"—Applicable for the Donut and Pie series."sharpBevel"—Applicable for the Donut and Pie series.
