Legend Type

If the Legend object's Type property is set to oc3dLegendTypeStepped, each legend label you create is associated with a particular zone. If Type is set to oc3dLegendTypeContinuous, each legend label is associated with the boundary between two zones. The Type property is located on the General Tab (Legend) on the Property Pages.

Note that zones are numbered from the bottom up: the first zone label is associated with the zone appearing at the bottom of the legend, and so on upwards.