/**
 * Represents one color step for a gradient.
 */
export interface IColorStep {
    offset: number;
    color: string;
}
/**
 * Define the current fill style of the canvas.
 */
export declare class FillStyle {
    value: string | CanvasGradient | CanvasPattern | undefined;
    constructor(value?: string | CanvasGradient | CanvasPattern);
    isValid(): boolean;
}