export declare class BlendMode extends Object {
    static NORMAL: string;
    static LAYER: string;
    static MULTIPLY: string;
    static SCREEN: string;
    static LIGHTEN: string;
    static DARKEN: string;
    static ADD: string;
    static SUBTRACT: string;
    static DIFFERENCE: string;
    static INVERT: string;
    static OVERLAY: string;
    static HARDLIGHT: string;
    static ALPHA: string;
    static ERASE: string;
    static SHADER: string;
    constructor();
}