import { Observable } from 'rxjs';
import { EnhancerOutput, RootEnhancer } from './types/enhancer';
declare const defaultThemes: ({
    name: "bright";
    backgroundColor: string;
    foregroundColor?: undefined;
} | {
    name: "sepia";
    backgroundColor: string;
    foregroundColor: string;
} | {
    name: "night";
    backgroundColor: string;
    foregroundColor: string;
})[];
export type Theme = (typeof defaultThemes)[number][`name`] | `publisher`;
export type ThemeEnhancerOutput = {
    set: (theme: Theme) => void;
    get: () => Theme;
    $: {
        theme$: Observable<Theme>;
    };
};
export type ThemeEnhancer = <InheritOptions, InheritOutput extends EnhancerOutput<RootEnhancer>>(next: (options: InheritOptions) => InheritOutput) => (options: InheritOptions & {
    theme?: Theme;
}) => InheritOutput & {
    theme: ThemeEnhancerOutput;
};
export declare const themeEnhancer: ThemeEnhancer;
export {};