URL：https://static.vecteezy.com/system/resources/previews/013/257/039/original/number-9-with-blue-purple-gradient-color-and-black-outline-vector.jpg
掲載元：https://es.vecteezy.com/arte-vectorial/13257039-vector-numero-9-con-color-degradado-azul-purpura-y-contorno-negro
