How to: Color TreeMap Using the Palette Colorizer

To color TreeMap using a Palette, assign a TreeMapPaletteColorizer object to the TreeMapControl.Colorizer property. To color all group items using one color, set the TreeMapPaletteColorizer.ColorizeGroups property of the colorizer to true. To specify a palette that should be used to color items, assign an instance of the Palette derived class to the TreeMapPaletteColorizerBase.Palette property of the colorizer.

void ConfigureTreeMapColorizer() {
    treeMap.Colorizer = new TreeMapPaletteColorizer {
        ColorizeGroups = true,
        Palette = Palette.Office2016Palette
    };
}