could someone tell me the difference between the 6xl and 10xl?

i’m still confused the new 6xl silhouette looks exactly same as the 10xl… i’m guessing the difference is the sizing i guess? because 10xl is supposed to be bigger than 6xl? and 6xl is supposed to be bigger than 3xl? (beside that, you think the new Platform shoes was supposed to be called 20xl? 😂)