private void initializeParts() {
    drawerBox = new VBox();
    drawerBox.getStyleClass().add("drawer-box");

    header = new BorderPane();
    header.getStyleClass().add("header");

    menuContainer = new VBox();
    menuContainer.getStyleClass().add("menu-container");

    scrollPane = new PrettyScrollPane(menuContainer);

    backIconShape = new StackPane();
    backIconShape.getStyleClass().add("shape");
    backBtn = new Button("", backIconShape);
    backBtn.getStyleClass().add("icon");
    backBtn.setId("back-button");

    companyLogo = new Label();
    companyLogo.getStyleClass().add("logo");
  }
Initializes all parts of the skin.
workbenchfx-core/src/main/java/com/dlsc/workbenchfx/view/controls/NavigationDrawerSkin.java