The CustomBaseColors define the base colors used by the calendars. The ResourceOverrides and ResourceOverridesHighContrast may be used to override individual brush resources. The key of the brushes in those dictionaries would be the string name of the Infragistics.Controls.Schedules.Primitives.CalendarBrushId member it is meant to override.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2