export declare const formatNumber: (n: number) => string;
export declare const formatTime: (seconds: number) => string;
export declare const formatTimer: (seconds: number, format: 'ms' | 's') => string;
export declare const getTimeFromString: (timer: string) => number;
export declare function getContrastColour(color: string): '#000' | '#FFF';
export declare function getSVGRatio(svgText: string): number;