export interface HighlightOptions {
    texts: string[];
    colors: string[];
    caseSensitive: boolean;
}
export declare class Highlighter {
    private options;
    private observer;
    constructor(options: HighlightOptions);
    highlight(element: HTMLElement, observe?: boolean): void;
    updateOptions(options: Partial<HighlightOptions>): void;
    destroy(): void;
    /**
     * Highlights the text content within a given element.
     * @param element The element in which to highlight text.
     */
    private highlightElement;
    /**
     * Observes changes in the DOM (like new nodes being added) and highlights them as needed.
     * @param element The element to observe for changes.
     */
    private observeChanges;
    /**
     * Reapplies highlighting to all previously highlighted elements.
     */
    private rehighlightAll;
}