import { ThemeConfig, PresetTheme } from '../types';
export declare const colorPalettes: {
    default: string[];
    vibrant: string[];
    pastel: string[];
    monochrome: string[];
    dark: string[];
    ocean: string[];
    sunset: string[];
    forest: string[];
    candy: string[];
    corporate: string[];
};
export declare const UNISYS_FONT_FAMILY = "'Unisys', 'Segoe UI', 'Helvetica Neue', 'Arial', sans-serif";
export declare const themes: Record<PresetTheme, ThemeConfig>;
/**
 * Get a color palette by name
 */
export declare const getColorPalette: (name: PresetTheme) => string[];
/**
 * Get a theme configuration by name
 */
export declare const getTheme: (name: PresetTheme) => ThemeConfig;
/**
 * Generate colors with opacity
 */
export declare const withOpacity: (color: string, opacity: number) => string;
/**
 * Lighten a color
 */
export declare const lighten: (color: string, amount: number) => string;
/**
 * Darken a color
 */
export declare const darken: (color: string, amount: number) => string;
/**
 * Parse a color string to RGB
 */
export declare const parseColor: (color: string) => {
    r: number;
    g: number;
    b: number;
    a?: number;
} | null;
/**
 * Generate gradient colors between two colors
 */
export declare const generateGradient: (startColor: string, endColor: string, steps: number) => string[];
/**
 * Get contrasting text color (black or white) based on background
 */
export declare const getContrastColor: (backgroundColor: string) => string;
/**
 * Cycle through colors for datasets
 */
export declare const getDatasetColor: (index: number, palette?: string[]) => string;
/**
 * Generate hover color (slightly darker or more opaque)
 */
export declare const getHoverColor: (color: string) => string;
/**
 * Resolve dynamic color to a string
 */
export declare const resolveColor: (color: string | string[] | ((index: number, value: number) => string) | undefined, index: number, value: number, fallback: string) => string;