/**
 * Turn progress whose rate swings once per revolution, so the ring reads as
 * alive rather than mechanical. Even across the loop seam and monotonic while
 * the amplitude stays under 1, so the ring neither jumps nor runs backwards.
 */
export declare function modulatedTurn(t: number): number;
/**
 * The ring the whole SDK waits behind. Presentational only — the caller owns
 * the accessibility role, since a spinner means different things in a button
 * slot and on a submission screen.
 *
 * `trackColor` replaces the export's own 30% of `color`, for a theme that
 * colors the track itself (`content/button/*\/loadingAlpha`).
 */
export declare function LoadingSpinner({ size, color, trackColor, delay, }: {
    size: number;
    color: string;
    /** Defaults to the export's 30% of `color`. */
    trackColor?: string;
    /** Milliseconds to hold the ring back; a wait that ends sooner draws nothing. */
    delay?: number;
}): import("react").JSX.Element | null;
//# sourceMappingURL=LoadingSpinner.d.ts.map