Mind some nitpicks? :)<p>It&#x27;s not possible to put a sector back into the piechart by clicking on it again. So once you clicked on any sector, there&#x27;s no way to go back to the original chart state.<p>Using up&#x2F;down arrows to change selection in comboboxes doesn&#x27;t update the graph.<p>Tree Chart has no animation on leaf expansion&#x2F;collapse, so clicking, for example, on Grandma results in the graph transformation that&#x27;s abrupt and not immediately obvious. There&#x27;s also no way to tell collapsed nodes from those without children (leafs).<p>Sankey Diagram could use some fade transitions to make highlighting less jarring.