https://www.gemboxsoftware.com/spreadsheet/docs/GemBox.Spreadsheet.ConditionalFormatting.ContainConditionType.html
ContainConditionType Enum | GemBox.Spreadsheet.ConditionalFormatting
GemBox.Spreadsheet.ConditionalFormatting.ContainConditionType: Represents a GemBox.Spreadsheet.ConditionalFormatting.ContainCondition type.
enumgemboxspreadsheetconditionalformatting