Feature request - Toggleable blindfold chess pieces beside game

The subject says it all. There should be a toggleable option for blindfold pieces in game so that we don't have to open options every time to make the pieces visible for analysis after game. If this seems unfair make the option appear only after a game ends so that the player cannot toggle during the game.

If you click Analysis board after the game ends, you can always see the pieces. So you do not need to toggle.