A 1/3 percentage test! Once again, checking how accurate Scratch's "Pick random" block is, so I did a test again. Mathematically, if it was completely perfect, it would be 33.33(infinite 3's) % white, 33.33% black, and 33.33% grey, but that's almost impossible. Let's see how accurate these are!
Turbo mode please; It takes a LONG time to stamp all the squares.