import type { ThemeDef } from './types/index.ts';
export declare const themes: ThemeDef[];
export declare const defaultThemeId = "midnight";
export declare function getTheme(id: string): ThemeDef;
/** Derived from the base colour's luminance, so new themes need no extra flag.
 *  Matches the color-scheme declared per theme in index.css. */
export declare function isDarkTheme(id: string): boolean;