I saw your great extensions. I am testing Sankey for more than two levels. Each level is a stopping time. For instance level one is termperiod 1, level 2 is timeperiod2, level 3 is timeperiod3. Each level has the same categories/dimensions because the main idea is to show how the distributions of categories is changing over set periods of time. How do I make sure the colors are the same for each category and do not change from level to level so I understand the flow. Right now the colors are changing making it very difficult to follow the flow.