import * as i0 from "@angular/core";
export declare class NgmThemeService {
    #private;
    readonly themeClass$: import("rxjs").Observable<string>;
    readonly themeClass: import("@angular/core").Signal<string>;
    constructor();
    static ɵfac: i0.ɵɵFactoryDeclaration<NgmThemeService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NgmThemeService>;
}
