Hi, I'm the current maintainer of also Panel Attack which is a free open-source game likewise inspired by Panel de Pon and Tetris Attack that has been a staple for online play within the PdP/TA community since 2018/2019.
With how long it has been around, the name Panel Attack is recognized by many in the scene so I kindly ask you to pick a different name for your game in order to prevent confusion among users.