Jewish perspective on superficiality and aesthetic

I want to ensure this discussion is Simpatico. So I’ll be straight forward. Judaism is known for its rationalism, and thus it focuses more for deeper truths. And this can be expressed through Misvot and the idea of Tzinut. Yet Judaism is diverse in its evolutionary history and I ponder upon the Jewish view on superficiality, and if it can coexist with the idea of Emet? And more simply if function coexists with aesthetic?

For example I heard the Jewish aligned ontological perfectionist argument; the more good something is, the realer it is. Closer to truth. Emet and tov. And maybe it can be interpreted as the more harmonious, beautiful and pure thing. So i’d love to hear a Torah perspective on how Jews view superficiality and aesthetic. And it’s relation to the highest knowledge.