import type { DefaultTheme } from 'styled-components';
import type { DefaultSettableTheme } from '../../theme';
export declare const navContrastColors: (theme: DefaultTheme) => {
    hoverBg: string;
    foreground: string;
    border: string;
    interactive: string;
    urgent: string;
    nestedList: string;
};
export declare const getHeaderTheme: (theme: DefaultTheme) => DefaultSettableTheme;
export declare const pxToRem: (n: number) => string;
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