Case T-680/18: Judgment of the General Court of 9 September 2019 — SLL Service v EUIPO — Elfa International (LUMIN8) (EU trade mark — Opposition proceedings — International registration designating the European Union — Figurative mark LUMIN8 — Earlier EU word mark LUMI — Relative ground for refusal — Likelihood of confusion — Article 8(1)(b) of Regulation (EU) 2017/1001)