1. [Bubbles] [MatrixSeries] [Color] how to? jfree.orgHi I am trying to set different bubble's colors of my bubblechart but I don't understand: As ContourDataset doesn't support more than oneSeries, it seems MatrixSeriesCollection is the only way to do it. MatrixSeries have to be made, but I can't understand "where", in the matrix, xValue, Yvalue & Zvalue have to be placed in (because in fact each bubble have ... |