private static Cursor createCursor(String id, String cursorName, Point hotSpot) {
		GIcon icon = new GIcon(id);
		Image image = icon.getImageIcon().getImage();
		Toolkit tk = Toolkit.getDefaultToolkit();
		return tk.createCustomCursor(image, hotSpot, cursorName);
	}
Set the cursor for drag under feedback.
@param c cursor for feedback; may be null if there is no feedback.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/programtree/TreeDragSrcAdapter.java