The Icona Avatar System is a standardized framework for managing user avatars across multiple virtual worlds. It provides a common subdivision model that splits avatars into interchangeable parts, such as head, body, and accessories, which can be mixed and matched within the constraints set by each world. The system integrates natively with Unreal Engine Blueprints and is designed to work alongside the Subdivision System and the Rule-Based Tagging System, which together control how avatar parts can be used and by whom. The goal is to allow users to retain and reuse their digital items across different environments without breaking the logic or aesthetic of any given world.