import type { FocusRingTokens, PaletteProps } from "../types";
export declare function settleBetween(hex: string, backdrops: readonly string[], target?: number): string;
/** Everything the ring is derived from. A `PaletteProps` satisfies it; so does a brand source. */
export type FocusRingSource = Pick<PaletteProps, "primary" | "background" | "backgroundColor">;
export declare const focusRingBackdrops: (source: FocusRingSource) => string[];
export declare const buildFocusRing: (source: FocusRingSource) => FocusRingTokens;
export declare const withFocusRing: (palette: PaletteProps) => PaletteProps;