import { ButtonIcon } from '../iconSprites';

export declare function lightenColor(color: string, amount: number): string;
export declare function colorWithOpacity(color: string, opacity: number): string;
export declare function lightenColorCached(color: string, amount: number): string;
export declare function getCachedTextWidth(ctx: CanvasRenderingContext2D, text: string, font: string): number;
export declare function calculateButtonWidth(width: number | 'auto', textWidth: number, iconSize: number, iconSpacing: number, leftIcon?: ButtonIcon, rightIcon?: ButtonIcon): number;
export declare function calculateContentWidth(textWidth: number, iconSize: number, iconSpacing: number, leftIcon?: ButtonIcon, rightIcon?: ButtonIcon): number;
export declare function clearButtonCaches(): void;