beak on the cubes

Created by: xkureck

We would like to have some sort of sign on some of our cubes(in the overview). The sign will be on the cubes that "leads into another cubes". The goal is to improve user experience so that user know before he clicks on the cube that the cube leads into other cubes. On the side menu we implemented it with the sign of the beak of the item in the menu. Find out what sign would be the best in your opinion and place that sign on the cube.