declare let bg1: (circleColor: string, maskColor: string) => string;
declare let bg2: (circleColor: string, maskColor: string) => string;
declare let bg3: (circleColor: string, maskColor: string) => string;
declare let bg4: (circleColor: string, maskColor: string) => string;
export { bg1, bg2, bg3, bg4 };