Unity color gradient

Quick answer：

Unity color gradient refers to the smooth transition of color from one to another within a 2D or 3D scene. It is commonly used for creating visual effects like smooth transitions between different materials or lighting changes. In Unity, color gradients can be achieved using the Gradient class, which allows for specifying colors at different points in a gradient. This can be used to create a wide range of visual effects, such as smooth color transitions in UI elements or animated light effects.