import { Subject } from "rxjs";
import * as i0 from "@angular/core";
export declare class BackgroundProviderService {
    $changeColor: Subject<unknown>;
    constructor();
    changeBackgroundColor(color: any): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<BackgroundProviderService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<BackgroundProviderService>;
}
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