/**
 * Optional deck settings, read from a `zerp` key in the deck's package.json.
 *
 * A deck is discovered from a directory containing `slides/` and needs no
 * configuration at all; this is for the one thing a deck cannot express any
 * other way without forking the framework — which typefaces it is set in. It
 * lives in package.json rather than a file of its own because the deck already
 * has a manifest, and because the font packages it names have to be
 * dependencies of that same manifest to be resolvable.
 */
export interface DeckFontConfig {
  /** Family name as the `@font-face` declares it, e.g. "JetBrains Mono". */
  family: string;
  /** Defaults to `@fontsource/<family slugified>`. */
  fontsourcePackage?: string;
  /** fontsource file stems: "400", "700", "400-italic". */
  weights?: string[];
}
export interface DeckSize {
  width: number;
  height: number;
}
export declare const DEFAULT_DECK_SIZE: DeckSize;
export declare function parseWxH(value: string): DeckSize | null;
export interface DeckConfig {
  fonts?: {
    body?: DeckFontConfig;
    display?: DeckFontConfig;
    mono?: DeckFontConfig;
  };
  size?: DeckSize;
}
export declare function resolveDeckSize(config: DeckConfig): DeckSize;
/**
 * Read a deck's `zerp` settings. A deck with no package.json, or none with a
 * `zerp` key, is configured — with the defaults.
 */
export declare function readDeckConfig(rootDir: string): Promise<DeckConfig>;