export declare const visuallyHidden: import("styled-components").FlattenSimpleInterpolation;
export declare const ellipsis: import("styled-components").FlattenSimpleInterpolation;
export declare const absoluteCenter: import("styled-components").FlattenSimpleInterpolation;
export declare const isValidCSSHex: (hex: string) => boolean;
export declare const hexTorgba: (hex: string, alpha?: number) => string;