export declare const STORYBOOK_VALS: {
    primary: string;
    disabled: string;
    cta: string;
    smokeBg: string;
    lightGray: string;
    darkGray: string;
};
export declare const lightenDarkenColour: (colour: string, amount: number) => string;
export declare const transparentizeColour: (colour: string, amount: number) => string;