a diagonal and square pattern with ramdom colours.

background pattern abstract diagonal texture random graphic geometric wallpaper vector modern backdrop design black white line retro repeat print lines stripe shape element simple art ornament fabric linear tile style textile contemporary template paper irregular lineal geometrical effect decorative square cover vintage geometry minimal striped straight repetition asymmetric creative decoration thin drawing multicolored stripes artwork asymmetrical asymmetry artistic colorful colors repeating uneven shapes slanted vibrant paterned patterned patterns hand coloured printed ramdom colours gel pen drawn red