You can shorten d="m27 23-27-27v4 27 27h4v-27h46v27h4v-27-27-4z" to d="m27 23-27-27v58h4v-27h46v27h4v-58z" The cubic bezier curve in your second version see

You can shorten d="m27 23-27-27v4 27 27h4v-27h46v27h4v-27-27-4z" to d="m27 23-27-27v58h4v-27h46v27h4v-58z" The cubic bezier curve in your second version seems like some kind of strange artifact.