FormatConditions.AddIconSetCondition Method (Excel)
Returns a new IconSetCondition object which represents an icon set conditional formatting rule for the specified range.
Use an icon set to annotate and classify data into three to five categories separated by a threshold value. Each icon represents a range of values. For example, in the 3 Arrows icon set, the red up arrow represents higher values, the yellow sideways arrow represents middle values, and the green down arrow represents lower values.