gradientColor(startX, startY, endX, endY, startColor, endColor)

Creates a two-point linear gradient color.

This method is for backward compatibility. Use BaseChart.linearGradientColor instead.

Argument	Default	Description
startX	(Mandatory)	The x coordinate of the starting point of the reference gradient line segment.
startY	(Mandatory)	The y coordinate of the starting point of the reference gradient line segment.
endX	(Mandatory)	The x coordinate of the ending point of the reference gradient line segment.
endY	(Mandatory)	The y coordinate of the ending point of the reference gradient line segment.
startColor	(Mandatory)	The color at the starting point of the reference gradient line segment.
endColor	(Mandatory)	The color at the ending point of the reference gradient line segment.

A 32-bit integer representing the linear gradient color.