I got it.
The function Add (to add data) is different from the way Delphi 5 and Delphi 7 handled TeeChart 7.

In Delphi 5, you did not specify a color and it use the default color.
In Delphi 7, you must specify a color when adding data.

I have a chart with 3 bar series and 3 lines series. I display 2 series at a time. The line series looks great in color. The bar series comes out black. When I am in Delphi IDE, the series are blue. All I am doing is adding data. Why is the bar series coming out black? I didn't have this trouble wit...