@sheyxneo/angular-material-theme-switcher/lib/component/dark-switcher/dark-switcher.component.d.ts

This library will help you to use multiple themes and easily switch between them in your project.

import { OnInit } from '@angular/core';
import { AmThemeService } from '../../service/am-theme.service';
export declare class DarkSwitcherComponent implements OnInit {
    private amThemeService;
    isDark: boolean;
    constructor(amThemeService: AmThemeService);
    ngOnInit(): void;
    toggleIsDark(isDark: boolean): void;
}