[2023] Mysterious logos on the sleeve of Riot Pupulasers

So in the last Dev blog video, there's this part where Riot Pupulasers has this "League Studio" hoodie, probably an internal merch among League team. There's a bunch of logo on the sleeve, two of which i have no idea what they are. From top to bottom :
- Wild Rift
- ???
- LoL
- ???
- TFT

My theories for now is that the "X" type logo could just represent the "creative team" since it's made of a music wave and a pen, but the TF one is weird.
Could have something to do with TFT since the "T" is the same sort of shape as the TFT logo, could be "TrinityForce" since there's 3 triangles behind it, or could be the real name of Project L

Any thoughts ?

https://preview.redd.it/tl4a97jfelmb1.jpg?width=1160&format=pjpg&auto=webp&s=981d4d351af4bf72b67e7b16ebf352e428a24b00