I remember going over to a kid’s house that lived up the street from my cousin. He had Pilotwings on Super Nintendo like right after it released. And he had a big screen TV!
My god man, you would not believe how picture perfect those pixels the size of a finger tip were.
But ‘sands’ gets used as well, like when talking about collective different type of sands. So there would be nothing wrong with saying “I have different color LEGOs” if your intention is as “green LEGO and yellow LEGO”… At least that’s how I read it, right?