/**
 * One token emitted while highlighting Book source.
 *
 * @private internal type of `BookEditor`
 */
export type BookEditorSyntaxTokenName = 'title' | 'commitment' | 'note-commitment' | 'todo-commitment' | 'parameter' | 'agent-reference' | 'code-block';
/**
 * Visual style of one Book syntax token.
 *
 * @private internal type of `BookEditor`
 */
export type BookEditorSyntaxTokenStyle = {
    /**
     * Token this style belongs to.
     */
    readonly token: BookEditorSyntaxTokenName;
    /**
     * Text color of the token.
     */
    readonly foreground: string;
    /**
     * Optional background color of the token.
     */
    readonly background?: string;
    /**
     * Optional space-separated font style, for example `bold underline`.
     */
    readonly fontStyle?: string;
};
/**
 * Single source of truth for how Book source is colored.
 *
 * The Monaco theme of `<BookEditor/>` and every static rendering of Book source
 * (for example the Book language manual PDF) are derived from these styles, so
 * a book always looks the same no matter where it is displayed.
 *
 * @private internal constant of `BookEditor`
 */
export declare const BOOK_EDITOR_SYNTAX_TOKEN_STYLES: ReadonlyArray<BookEditorSyntaxTokenStyle>;