The brush properties are used to fill the background type and color of the series labels. To change the background color and appearance of series labels, use the brush properties in the object inspector.
Stimulsoft Reports offers 6 types of brushes
Empty
Below are the results for the 6 different brushes.
The Brush.Color property is used to change the color of the "series label". Below is a sample chart with the Brush property set to Glare.