import { Renderer2, ElementRef } from '@angular/core';
export declare class BackgroundColorDirective {
    private elementRef;
    private renderer2;
    private currentStyle;
    private currentClass;
    constructor(elementRef: ElementRef, renderer2: Renderer2);
    condition: boolean;
    prefix: string;
    property: string;
    color: string;
    private reset();
}
export declare class ColorDirective {
    private elementRef;
    private renderer2;
    private currentStyle;
    private currentClass;
    constructor(elementRef: ElementRef, renderer2: Renderer2);
    color: string;
    private reset();
}