@umbraco-ui/uui-base/lib/types/InterfaceLook.d.ts

This is a base dependency for Umbraco UI components. It contains mixins, animations, abstract base classes, UUIEvent base class, and universal types for properties shared by different components

export declare const UUIInterfaceLookValues: Readonly<UUIInterfaceLook[]>;
export type UUIInterfaceLook = '' | 'default' | 'primary' | 'secondary' | 'outline' | 'placeholder';