import { RGBColor } from 'helpers-lib';
import * as PIXI from 'pixi.js';
import { GlowOptions } from '../..';
export declare class GlowFilter {
    private pixiSprite;
    private glowSprite;
    constructor(pixiSprite: PIXI.Sprite);
    add(color: RGBColor, options?: GlowOptions): void;
    setAlpha(alpha: number): this;
    get alpha(): number;
    set alpha(value: number);
    remove(): void;
}