The 'monochrome' property

Boolean Scalar

Valid for: Chart

Normally, charts are drawn in color, with different series being drawn in different colors to distinguish them. Sometimes, however, you may want the chart to be drawn in monochrome, for example if you are printing it on a black-and-white printer. The monochrome property allows this. If you set it to 1, all the elements of the chart will be drawn in the Chart object's Foreground color (by default, black).

Since this means that the different series cannot be distinguished by color, they will instead be distinguished by line type (solid, dashed, dotted, etc) or by fill pattern (vertical hatch, horizontal hatch etc). See the linetype and fillpattern properties of the Series object for more information on these.