import type { Theme } from "cli-highlight";
export declare const vscodeDarkTheme: Theme;
/** The names of all built-in color schemes (the valid string values for `theme`). */
export declare const BUILTIN_THEME_NAMES: string[];
type CustomScheme = Record<string, {
    color?: string;
    styles?: string[];
}>;
/**
 * Resolve a theme argument to a cli-highlight Theme.
 * - empty/undefined -> vscode-dark
 * - string  -> a built-in; THROWS on an unknown name
 * - object  -> a custom ColorScheme, merged over vscode-dark; THROWS on an
 *   invalid color
 */
export declare function resolveTheme(theme?: string | CustomScheme): Theme;
export {};