The lighting fixtures of the Traditio collection by Trio Lighting consist of metal adorned with a copper or gray patina, white alabaster glass, and transparent crystals.

The precise definition of patina refers to the thin greenish layer (oxidation) that forms on copper objects as a result of their chemical corrosion when they remain exposed to air for long periods or buried underground.

Now, the term has expanded to include the appearance that can be given to metal surfaces not just through the natural passage of time but also through an artificial aging process for aesthetic reasons, namely a painting technique that mimics the look of natural oxidation on metal surfaces with color.