There's probably a nice idea behind it but I couldn't figure out what I had to do

Need to add some gamification and goals for a player to reach.

I think you've got a nice technical/mechanical basis here for what could be an actual game. You need to find some way to insert a goal for the mechanics to work towards, like in Picto Quest. Basically you'll be figuring out how to draw pixel art. And as Diralf, I too struggled a bit with understanding what to do, perhaps a tutorial could be added?

It looks like it could be something intresting,  however i dont know what to do

I didn’t quite understand how to draw something. The most I could do is select an operator and click something on the edge, but when I click elsewhere, nothing happens.

The idea of game looks interesting, I love nonograms.

Could you describe what needs to be done?

This is a cool concept for a game!  I just wish I knew enough about bitwise operations to play the game.