Change graph colors automatically.

In Demantra 12.2.5.1, through the Workbench, all of the lines are defaulting to RED each with a different symbol.

It is my understanding that

"Collaborator Workbench chooses the color to use for

each series, when displaying series in the graph-type content

panes."

I know how to manually set colors, but how can I get the automatic selection to start choosing different colors INSTEAD of different symbols.

Thank you in advance for any help or suggestions you can offer.