The font will be selected on the top part of the dialog. To change the labels, click on the appropriate label field and type what you wish the label to be. The Correlogram is capable of drawing markers at each data point. Furthermore, each point can be one of five colors. They are black, red, blue, green, and cyan.
Lines function the same way.
The legend can be turned on or off. Default is on. The default is 16 pixels. Also controls the spacing between the line sample and the text, and the vertical spacing between legend entries. The default is 3 pixels.