/** Stable, consumer-agnostic interactive-demo substrate (#143). */
export {
  DemoFrame,
  DEMO_HEADING_LEVELS,
  type DemoFrameProps,
  type DemoHeadingLevel,
} from './DemoFrame.js';
export { Slider, type SliderProps } from './Slider.js';
export {
  StatCards,
  STAT_CARD_TONES,
  type StatCardItem,
  type StatCardTone,
  type StatCardsProps,
} from './StatCards.js';
export {
  useThemeColors,
  type BookTheme,
  type ResolvedThemeColors,
  type ThemeColorMap,
  type ThemeColorSpec,
  type ThemeColorsSnapshot,
  type ThemeColorToken,
} from './useThemeColors.js';