Case T-799/16: Judgment of the General Court of 12 March 2019 — Xiaomi v EUIPO — Dudingen Develops (MI) (EU trade mark — Opposition proceedings — Application for EU figurative mark MI — Earlier EU figurative mark MI — Relative ground for refusal — Article 8(1)(b) of Regulation (EC) No 207/2009 (now Article 8(1)(b) of Regulation (EU) 2017/1001) — Obligation to state reasons — Article 75 of Regulation No 207/2009 (now Article 94 of Regulation 2017/1001))