import * as i0 from "@angular/core";
export type ChartThemeName = 'light' | 'dark' | 'highContrast' | 'pastel' | 'corporate' | 'monoChrome';
export type ColorblindMode = 'none' | 'deuteranopia' | 'protanopia' | 'tritanopia';
export interface ChartTheme {
    name: ChartThemeName;
    colors: string[];
    bg: string;
    grid: string;
    axis: string;
    axisText: string;
    tooltipBg: string;
    tooltipColor: string;
}
export declare class ChartThemeService {
    private themes;
    getTheme(name: ChartThemeName): ChartTheme;
    applyTheme(element: HTMLElement, themeName: ChartThemeName): void;
    getColorblindPalette(mode: ColorblindMode): string[];
    static ɵfac: i0.ɵɵFactoryDeclaration<ChartThemeService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ChartThemeService>;
}