Indicates the color of the tenth pen (pen 9) when displayed on the Trends page. By default, the TrendColor9 variable is set to dark green (2).
Related Variables: The TrendColor0 through TrendColor11 variables should be used together with the TrendAreaColor, TrendHGridColor, and TrendVGridColor 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: TrendColor9 = 2