By default, the Color property of the LineOptions object is -1(the color of the serie defines the color of the line within the overview-map). The Line property defines the configuration options for displaying the lines of values in the overview. The Visible property shows or hides the overview. The Size property specifies the size of the control's overview. The Serie property specifies a serie or multiple series separated by comma to be represented within the overview-map. The Dock property specifies the edge of the container the overview-window is anchored to.