Firefox F12 and there is a colour picker, it can work in a pinch. But it doesn't matter for this article, author puts values in descending order for the labels

Firefox F12 and there is a colour picker, it can work in a pinch. But it doesn't matter for this article, author puts values in descending order for the labels so you dont really need colours. Better yet if they put the values next to the label name too, but we can have it all.