[Bug] [UI] New tasks with the flag normal show a grey color (#14862)

(cherry picked from commit 89a55de070)

dolphinscheduler-ui/src/views/projects/workflow/components/dag/use-task-edit.ts

@@ -168,9 +168,9 @@ export function useTaskEdit(options: Options) {
       processDefinition.value.taskDefinitionList.map((task) => {
         if (task.code === currTask.value?.code) {
           setNodeName(task.code + '', taskDef.name)
-          let fillColor = '#f3f3f5'
-          if (task.flag === 'NO') {
-            fillColor = '#ffffff'
+          let fillColor = '#ffffff'
+          if (task.flag === 'YES') {
+            fillColor = '#f3f3f5'
           }
           setNodeFillColor(task.code + '', fillColor)