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Couldn't you just put the ChartPanel in a JLayeredPane and then have the same effect?

Ah, thanks. I was still using RC 1 which didn't have that method. I'm on 1.0.0 now!

Congratulations, David! JFreeChart really is a fabulous library, you've done an excellent job. We just recently migrated from a commercial library and this just beats the pants off it. Thank you very much for your hard work!

To remove legend use the removeLegend method in JFreeChart class. Thanks for the pointer. If the legend is removed, can it be added back without rebuilding the entire chart? We have an interactive builder that displays the chart changes as the user modifies the settings. If they choose to hide the ...

At a minimum you could cheat and have two lines. One (in the first color) would only be present where you want to show that color and the second line (the second color) would be everywhere else.