/**
 * Dynamically generates and sets extended primary colors based on the primary color.
 *
 * This function retrieves the primary color from CSS variables and generates a set
 * of extended primary colors by blending the primary color with white or black, depending
 * on the current theme (light or dark mode). The generated colors are then applied as
 * CSS variables.
 *
 * @static
 */
export declare function generateExtendedColors(iframeDoc: Document | null | undefined): void;