PiXEL is an add-on that automates the generation of pixel art styles from 3D models. It simplifies the setup process by importing a custom node group into the compositor and adjusting the camera resolution to achieve a low-resolution effect. The add-on also applies an inverted hull outline to meshes, with controls for line thickness and color. Custom material properties can be assigned to adjust dithering, shadow color, scale, and contrast for generating stylized assets.