import { type BaseTheme } from "./theme.types";
/**
 *  Converts a hex color to rgba.
 * @param hex hex color string.
 * @param alpha opacity.
 * @returns rgba color string.
 */
export declare const hexToRgba: (hex: string, alpha: number) => string;
/**
 * Converts a size key to a numeric fontSize.
 * @param size standardized size key.
 * @returns numeric fontSize.
 */
export declare const sizeToFontSize: (theme: BaseTheme, size: "xs" | "sm" | "md" | "lg" | "xl") => number;
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