/**
 * Whether the user has asked the OS to reduce transparency (iOS "Reduce
 * Transparency", or the web `prefers-reduced-transparency: reduce` media query).
 * Under this setting the glass surface renders opaque instead of translucent, per
 * Apple's Liquid Glass guidance ("makes Liquid Glass frostier and obscures more of
 * the content behind it").
 *
 * Android has no equivalent OS setting, so this is always false there (RN's
 * isReduceTransparencyEnabled resolves false on Android). Returns false until the
 * first async read resolves, then tracks live changes.
 */
export declare function useReducedTransparency(): boolean;
/**
 * Whether the user has asked the OS to increase contrast (iOS "Increase Contrast",
 * Android "High contrast text", or the web `prefers-contrast: more` media query).
 * Under this setting the glass surface renders near-solid with a contrasting
 * border, per Apple's Liquid Glass guidance ("makes elements predominantly black or
 * white and highlights them with a contrasting border").
 *
 * The native query is PLATFORM-PICKED and this is mandatory: on iOS the setting is
 * isDarkerSystemColorsEnabled and on Android the nearest is isHighTextContrastEnabled,
 * but each of those RN methods NEVER settles its promise on the OTHER platform (an
 * upstream RN bug), so calling the wrong one hangs. Returns false until the first
 * async read resolves, then tracks live changes.
 */
export declare function useIncreasedContrast(): boolean;
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