Face UI defines the component language used by Userface: base components, built-in design system rules, prop logic, and a restrained business UI style.
Face UI
Controlled component library and default design system for Userface.
Face UI defines the component surface that the agent can assemble safely: reusable blocks, states, density rules, and composition patterns for reviewable product interfaces.
Status
Work in progress
Role
Author, Design Engineer
Domain
Component Library, Design Systems, Interface Generation
Visual language
Mark
The mark follows the same discipline as the component library.
Hard geometry and mirrored inner shapes make the Face UI symbol feel repeatable and constrained. It works next to components, states, and generated screens as part of the same product language.


Component language
Face UI defines visual rules for interfaces assembled by Userface.
The library describes components, states, density, and composition rules as inspectable constraints for generated interfaces before they enter the product.
System logic
Components define constraints for generated interfaces, so the result remains controlled before it reaches product code.
Product principle
- Components behave as product logic for generation and review.
- The UI language is controlled through primitives, states, density, and composition rules.
- The library links the product interface with the constraints that make generated output inspectable.