import { ISettingRegistry } from '@jupyterlab/settingregistry';
import { NotebookPanel } from '@jupyterlab/notebook';
import { ILabShell, JupyterFrontEnd } from '@jupyterlab/application';
export declare class UIOptionFeaturesHelper {
    private app;
    private settings;
    private panel;
    private labShell;
    private showPublicationFeature;
    private autoCloseBracketsFeature;
    private autoSaveFeature;
    private improveFontsFeature;
    constructor(app: JupyterFrontEnd, settings: ISettingRegistry, panel: NotebookPanel, labShell: ILabShell);
    registerFeatures(): void;
    private onActiveChanged;
    private initFeatures;
    private updateFeatures;
    private loadSettings;
}