The Overall Aesthetic

Minimalist & Chic: The window is pristine, embodying Prada's signature blend of modern luxury and understated elegance. The dominant colors are deep matte black, stark white, and the subtle shimmer of the product itself.

The "Mirror": A large, floor-to-ceiling, seamless two-way mirror dominates the center of the window. It appears as a dark, reflective surface, mirroring the street and passersby, but it holds a secret.

Lighting: The ambient streetlights reflect softly, but the internal lighting of the window itself is strategically controlled. There are no harsh spotlights directly on the viewer; instead, soft, diffused, cool-toned LEDs subtly illuminate the product and the user's face when the AR activates.

The Physical Product Display

Central Riser: Slightly off-center (to allow for the AR overlay on the person's face), a minimalist, matte black pedestal or a sleek, almost invisible glass plinth holds one single, iconic Prada accessory—for instance, a pair of oversized, geometric Prada Statement Sunglasses (perhaps in black or tortoiseshell).

Spotlight on Product: A very precise, narrow beam of light illuminates only this physical product, giving it a sculptural, museum-like quality.

The Digital Overlay (UI/AR)

Initial State (Passive): When no one is directly in front, the mirror simply reflects. A subtle, elegant, white digital text overlay appears only at the very top of the mirror, reading: "See Yourself in the Iconography." in Prada's characteristic refined, minimalist typeface. Below it, a subtle icon of a hand making a "swipe" gesture might hint at interaction.

• Active State (Interactive Try-On):

  • As a person steps in front, their reflection appears clearly in the mirror.

  • AR Overlay: Instantly and seamlessly, a photorealistic augmented reality version of the physically displayed Prada sunglasses appears perfectly superimposed on their face in their reflection. The AR is so good it looks like they are actually wearing them, showing light glinting off the lenses and texture on the frames.

  • Navigation: Along the bottom edge of the mirror, three small, elegant, translucent white circular icons appear. Each icon might subtly represent a different Prada accessory (e.g., a simple outline of a headband, another style of sunglasses, a small visor). A soft, glowing highlight indicates the currently "worn" item.

  • Gesture Prompt: A very subtle text instruction might appear briefly near the bottom: "Swipe to explore."

• Sharing State: Once the user makes a gesture (perhaps a sustained hold of their hand) or cycles to a favorite item:

  • A prominent QR code appears in one of the lower corners of the mirror (e.g., bottom right).

  • Below the QR code, a clear, white text call-to-action reads: "Scan to capture your look."

  • The AR overlay remains active on their face.
    

Overall Impact

The window creates a moment of surprise and delight, transforming passive window shopping into an active, personalized, and instantly shareable brand experience, inviting passersby to literally "see themselves" as part of the Prada narrative.