export function splitter(str: any, l: any): any[];
/**
 * Use to darken / lighten colors in rgba, rgb, or hex representation
 *
 * @param {String} col String representing a Color in format rgba, rgb or hex. Example 'rgba(11,22,33,0.5)' or '#123456'
 * @param {Int} atm Level of dark. Example -30 is darker than -10. Use positive number for lighter colors
 *
 * @returns {String} - rgba color darkened by arm value
 *
 */
export function getDarkerColor(col: string, amt?: number): string;