Chart Border
The Border page has the following options:
Border style: this setting specifies how the border of the chart appears. The choices are None (the default), Plain, Lowered, or Raised.
Color: this setting, which is only available when Border style is set to something other than None, specifies the color of the border. To change the color, click the colored square beside this setting and select the desired color from the dialog that appears.
Width: this setting, which is only available when Border style is set to something other than None, specifies the width of the border.
Shadowed: if this setting, which is only available when Border style is set to something other than None, is turned on, the border includes a shadow.