TeeChart Pro v6.  -  New property aliases.

You can still use the "old" properties, although it's recommended to start using the new properties.

Old New
   
Series1.Active:=True Series1.Visible:=True
Series1.SeriesColor:=clRed Series1.Color:=clRed
Series1.ValueColor[123]:=clNone Series1.SetNull(123)
Chart1.LeftAxis Chart1.Axes.Left
Chart1.LeftWall Chart1.Walls.Left