@Override
		public void run() {
			waitingList.add(new GroupInfo(group));
			for (GScheduledTask gScheduledTask : tasks) {
				waitingList.add(new TaskInfo(gScheduledTask));
			}
		}
Uses a layered pane to create a "watermark effect" to show when the GTaskManger is suspended.
Ghidra/Framework/Project/src/main/java/ghidra/framework/task/gui/taskview/TaskViewer.java