interface ISettings {
    navigatorEnabled?: boolean;
    pagingEnabled?: boolean;
    leftPanelOpen?: boolean;
    rightPanelOpen?: boolean;
    preserveViewport?: boolean;
    clickToZoomEnabled?: boolean;
    reducedAnimation?: boolean;
    truncateThumbnailLabels?: boolean;
    contrastPercent?: number;
    brightnessPercent?: number;
    saturationPercent?: number;
    rememberSettings?: boolean;
    animationDuration?: number;
}