Pokémon Black Version and Pokémon White Version - Markings
Each Pokémon includes a set of markings, which can be either on or off. Markings can be set in the Pokémon Storage System and will appear in the Storage System and in a Pokémon’s Summary screen, among other places. Markings have no effect on game play. A Pokémon starts with all markings off. The markings are circle, square, triangle, heart, star, and diamond.