Why aren't plants black? 🌿

Is the plant not essentially more or less transparent in many parts but appears green as you see so many layers.. does that transparent part not refract light itself to the other parts of the leaf? In which case maybe plants vary thier own preference of light colour/intensity etc based upon thier own makeup and thier own needs.
I struggle to believe that every individual plant purely relies upon the standard properties of light available, I'd imagine they kinda filter and refract to get their exact needs? I mean the light they recieve has always been varied in some way through atmosphere or filtered through another plant or reflected from elsewhere etc.

Oh and just to confuse things more, we are only able to observe some "colours" so there may be more going on than is obvious at first?

Just curious.. I'm no expert