import { type LiteralStringUnion } from './type-helper';
import { TypedEvent } from './typed-event';
export type ThemeVariant = 'light' | 'dark';
declare class ThemeSwitcher {
    readonly prefixTheme = "theme-";
    readonly suffixLight = "-light";
    readonly suffixDark = "-dark";
    readonly defaultTheme = "theme-classic-dark";
    private mutationObserver?;
    readonly themeChanged: TypedEvent<string>;
    readonly schemaChanged: TypedEvent<string>;
    hasVariantSuffix(className: string): boolean;
    private isThemeClass;
    getMode(): ThemeVariant;
    private getThemeClassFromBody;
    setTheme(themeName: string, systemAppearance?: boolean): void;
    private replaceThemeClass;
    toggleMode(): void;
    getCurrentTheme(): string;
    setVariant(variant?: ThemeVariant): void;
    private splitMutations;
    private handleClassMutations;
    private handleDataMutations;
    private registerMutationObservers;
    constructor();
    destroy(): void;
}
export type IxTheme = LiteralStringUnion<'classic' | 'classic-dark' | 'classic-light'>;
export declare const getCurrentSystemAppearance: () => ThemeVariant;
export declare const themeSwitcher: ThemeSwitcher;
export {};