Method style

src/main/java/org/sfj/DrawDot.java:247–247

(NodeStyle style, Color... colorlist)

  @SuppressWarnings("unchecked")
  interface NodeStyled<E> extends Attributable<E> {
    default E style(NodeStyle style, Color... colorlist) {
      style(style);
      if (colorlist.length > 0) {
        String clist = Arrays.stream(colorlist).map(Object::toString).collect(Collectors.joining(":"));