This sample visualizes the top 10 largest islands in the world based on area. The color mapping is applied to the items to differentiate them from other items.
                    In this example, you can see how to render a tree map with color
                    mapping. The range color mapping and desaturation color mapping group
                    the shapes based on the area size, whereas the equal color mapping
                    groups the shapes based on the continent value. The legend is enabled
                    in this example to represent each color mapping.
                    
                    
                    The tooltip is enabled in this example. To see the tooltip in action,
                    hover the mouse over an item or tap an item in touch enabled devices.
                
Injecting Module
                    The TreeMap component features are segregated into individual modules
                    by feature. To use a legend, inject the Legend module
                    using the TreeMap.Inject(TreeMapLegend) method.