Color gradient for traces

Is there a way to create a color gradient for traces in graphs? I want to use a color gradient in symbols to give it a three-dimensional effect.

Could you be more specific? Do you mean: apply the gradient along one trace or have each trace a different shade? Perhaps if you have a similar graph in mind you could post a picture of it?

In Igor 7 and above, you can execute the following command to bring up the help topic on gradient fills:

DisplayHelpTopic "Gradient Fills"

There is no dialog support for gradients.