ChartShape API in JavaScript (ES5) Spreadsheet API control

Defines the shape of marker. 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.
• image - Renders a image.
• Circle
• Triangle
• Diamond
• Plus
• None