Case T-607/21: Judgment of the General Court of 14 September 2022 — Blueroots Technology v EUIPO — Rezk-Salama and Breitlauch (SKILLTREE STUDIOS) (EU trade mark — Invalidity proceedings — EU word mark SKILLTREE STUDIOS — Absolute grounds for refusal — Lack of descriptive character — Distinctive character — Article 7(1)(b) and (c) of Regulation (EC) No 207/2009 (now Article 7(1)(b) and (c) of Regulation (EU) 2017/1001))