Gave it a quick try and liked it so far. Of course it's still quite basic but a good start I'd say. Looking forward to seeing more features being added.

To anyone looking for a more feature packed pixel art editor, I highly recommend https://github.com/Orama-Interactive/Pixelorama which is free and made with Godot. I recently switch to Pixelorama coming from Aseprite because imo the development for the latter got a bit stale over the years while Pixelorama really seems to have a lot of momentum and community behind it. Also, Pixelorama being made with Godot is something I really love to see!