We were given a bunch of Kirkland diapers from our friend who no longer needed them since his son grew out of them so fast. He said that half for newborn and half for size 1 or 2. I don't see any identifiers on the diaper itself like other brands have. Can anyone tell me how to distinguish between the sizes with this brand please? I see they have different colored lines at the top and around the legs and the panda seems to be in different positions but I'm not sure if that's an indicator