/**
 * Display names for the SubMenu components
 */
export declare const DISPLAY_NAME: {
    ROOT: string;
    BACKGROUND: string;
    TRIGGER: string;
    TRIGGER_INDICATOR: string;
    CONTENT: string;
};
/** Default icon size for the trigger indicator chevron */
export declare const DEFAULT_INDICATOR_ICON_SIZE = 16;
/** Spring configuration for indicator rotation animation */
export declare const INDICATOR_SPRING_CONFIG: {
    damping: number;
    stiffness: number;
    mass: number;
};
/** Default padding above submenu content when expanded */
export declare const DEFAULT_ROOT_CONTENT_PADDING_TOP = 12;
/**
 * Duration (ms) of the background layer fade-out on close. Roughly matches
 * the settle time of `ROOT_CONTENT_SPRING_CONFIG` so the surface dissolves
 * while the root collapses instead of unmounting instantly and exposing the
 * menu items behind it.
 */
export declare const BACKGROUND_EXITING_DURATION = 200;
/** Spring config for root content container expand/collapse animation */
export declare const ROOT_CONTENT_SPRING_CONFIG: {
    damping: number;
    stiffness: number;
    mass: number;
};
/** Default margin horizontal/vertical when submenu is open */
export declare const DEFAULT_ROOT_CONTENT_MARGIN = -16;
/** Default padding horizontal when submenu is open */
export declare const DEFAULT_ROOT_CONTENT_PADDING_HORIZONTAL = 6;
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