export declare const PROMO_CHROMA_RELATIVE = 0.65;
export declare const PROMO_CHROMA_MIN = 0.11;
export declare const PROMO_CHROMA_MAX = 0.13;
export declare const PROMO_HUE_SHIFTS: {
    min: number;
    max: number;
    shift: number;
}[];
export declare const PROMO_LIGHTNESS_SHIFTS: {
    min: number;
    max: number;
    shift: number;
}[];