The BackColour property represents the background color of the embedded Trend, X-Y Plot, or X-Y-Z Plot. You can animate this so that it uses a color that is associated with a database item (such as the alarm color), refers to a custom color, or is set to a specific color (an RGB value).
This property works in a similar way to the FillColour except that it applies to the background of an embedded Trend, X-Y Plot, or X-Y-Z Plot instead of the fill of an object.