Defines the shape of legend. They are
Circle
- Renders a circle.Rectangle
- Renders a rectangle.Triangle
- Renders a triangle.Diamond
- Renders a diamond.Cross
- Renders a cross.HorizontalLine
- Renders a horizontalLine.VerticalLine
- Renders a verticalLine.Pentagon
- Renders a pentagon.InvertedTriangle
- Renders a invertedTriangle.SeriesType
- Render a legend shape based on series type.