Case T-274/20: Judgment of the General Court of 15 September 2021 — MHCS v EUIPO — Lidl Stiftung (Shade of the colour orange) (EU trade mark — Invalidity proceedings — Figurative EU mark depicting a shade of the colour orange — Absolute ground for refusal — Article 7(1)(b) of Regulation (EC) No 40/94 (now Article 7(1)(b) of Regulation (EU) 2017/1001) — Examination of the facts of the EUIPO’s own motion — Article 95(1) of Regulation 2017/1001 — Nature of the mark — Colour mark — Right to be heard — Article 94 of Regulation 2017/1001)