How to make metal fade into gradient color

Quick answer：

To make metal fade into gradient color, you can use a process called anodizing or painting techniques. Anodizing involves electrochemically oxidizing the metal surface to create a layer that can be dyed in various colors. For painting, you can apply multiple layers of paint with different shades to achieve the desired gradient effect. It's important to clean and prepare the metal surface properly before applying any treatment to ensure adhesion and durability.