So I was thinking abt how UTTERLY oblivious Marinette/Adrien are, you know the usual but they look the same you idiots. Then I realized that in fact they might not be as clueless as we thought. WAIT BUT LISTEN. So during his transformation Adrien's eyes/hair change, so he assumes that Ladybug's hair/eyes also change. However; Ladybug doesn't change at all so she assumes that in civilian form Chat looks more or less the same b/c she doesn't change at all.