Set sankey item visual

src/chart/sankey/sankeyVisual.ts

@@ -49,9 +49,14 @@ export default function (ecModel: GlobalModel) {
 
                 const mapValueToColor = mapping.mapValueToVisual(node.getLayout().value);
                 const customColor = node.getModel<SankeyNodeItemOption>().get(['itemStyle', 'color']);
-                customColor != null
-                    ? node.setVisual('color', customColor)
-                    : node.setVisual('color', mapValueToColor);
+                if (customColor != null) {
+                    node.setVisual('color', customColor);
+                    node.setVisual('style', {fill: customColor});
+                }
+                else {
+                    node.setVisual('color', mapValueToColor);
+                    node.setVisual('style', {fill: mapValueToColor});
+                }
             });
         }
     });

src/component/tooltip/TooltipView.ts

@@ -782,7 +782,7 @@ class TooltipView extends ComponentView {
             tooltipModel, positionExpr, x, y, tooltipContent, params, el
         );
         tooltipContent.setContent(html, markers, tooltipModel);
-        tooltipContent.show(tooltipModel, el?.style.fill || nearPoint.color);
+        tooltipContent.show(tooltipModel, nearPoint.color);
 
     }