Press the reset button to reset and just draw by holding on the squares. Use murbo tode oh wait, turbo mode if you just want to skip the loading part. Update 0.1: added grid
How this works: I made the original sprite changing the x and once it hits a certain point it moves up and keeps going until another point, as it does this, it creates clones and I said it to turn brightness by -100 if touching mouse and mouse down, I made the reset button to broadcast and make a variable true, if that variable is true then all of the squares reset. This is used by gridding and sensing.