Indicates the color of the background for the Trends page. By default, the background color of the Trends page is set to dark cyan (3).
Related Variables: The TrendAreaColor variable should be used together with the TrendHGridColor and TrendVGridColor, and the TrendColor0 through TrendColor11 variables in order to make the horizontal and vertical grids and the possible pen selection colors stand out from the background color set for the Trends page.
Default: TrendAreaColor = 3