BarChart:Set different background colors based on attribute.

[federico]

I'm trying to set different background colors based on attribute range.

I know is possible because I found some example on the web but can't figure out how.
After trying several dozen "set*Paint(...)" methods I finally gave up.

Any ideas?

Your help is appreciated.

Example:

[John Matthews]

An org.jfree.chart.plot.Marker "can be added to plots to highlight a value or range of values."