import { ColorMode } from '@xyflow/react';
export interface UseFlowThemeReturn {
    /** CSS variables to spread on the ReactFlow wrapper style. */
    themeVars: Record<string, string>;
    /** Resolved React Flow colorMode derived from the live theme mode. */
    colorMode: ColorMode;
}
/**
 * Reads the active Exotel theme mode and returns:
 * 1. A CSS-variable map to apply on the ReactFlow wrapper, and
 * 2. The React Flow `colorMode` matching the current theme mode.
 *
 * Reads `useThemeMode()`, not `theme.palette.mode` — under this repo's
 * `extendTheme` + `colorSchemeSelector: "class"` CSS-vars setup,
 * `theme.palette.mode` is frozen to the build-time default and never reflects the
 * user's actual toggle (same trap `nodeRegistry/useNodeAccent.ts` documents and
 * avoids). `useThemeMode()` can return `'system'`, which is resolved explicitly
 * against `prefers-color-scheme` rather than assumed to fall into the light branch.
 */
export declare function useFlowTheme(): UseFlowThemeReturn;