import { Vector2 } from "three";
import { RGBAColor } from "../../engine/js-extensions/index.js";
import { Behaviour } from "../Component.js";
/**
 * [Outline](https://engine.needle.tools/docs/api/Outline) is a UI component that adds an outline effect to UI elements.
 * You can customize the outline color and distance to create a visual border around the UI element.
 * @summary Add an outline effect to UI elements
 * @category User Interface
 * @group Components
 */
export declare class Outline extends Behaviour {
    effectColor?: RGBAColor;
    effectDistance?: Vector2;
}