Case T-532/18: Judgment of the General Court of 17 September 2019 — Aroma Essence v EUIPO — Refan Bulgaria (washing sponge) (Community design — Invalidity proceedings — Registered Community design representing a washing sponge — Earlier designs — Grounds for invalidity — Examination by the Board of Appeal of its own motion of the facts constituting disclosure — Burden of proof on the invalidity applicant — Requirements relating to the reproduction of the prior design)