setBackground(color[, altBgColor[, edgeColor]])

Set the background colors and the border color of the plot area.

A plot area can have one or two background colors. If it has two background colors, they are drawn alternatively as horizontal bands on the background grid.

Argument	Default	Description
color	(Mandatory)	The background color.
altBgColor	-1	The second background color. -1 means there is no second background color.
edgeColor	LineColor	The color used to draw the border of the plot area.

None