import { ViewContainerRef, OnInit, OnChanges } from '@angular/core';
export declare class SiteLogoIcon implements OnInit, OnChanges {
    private viewContainer;
    siteTitle: string;
    siteLogo: string;
    siteTemplate: string;
    size: number;
    color: string;
    forceLetterAvatar: boolean;
    imgSize: string;
    static templateGuid: string;
    constructor(viewContainer: ViewContainerRef);
    ngOnInit(): void;
    ngOnChanges(changes: any): void;
    private init;
    getO365GroupIconStyles: () => {
        "background-image": string;
        "background-size": string;
        "width": string;
        "height": string;
    };
}