private void initGraphics() {
        outerFrame = new Region();
        outerFrame.getStyleClass().setAll("outer-frame");

        innerFrame = new Region();
        innerFrame.getStyleClass().setAll("inner-frame");

        mainBack = new Region();
        mainBack.getStyleClass().setAll("main-back");

        main = new Region();
        main.getStyleClass().setAll("main");

        highlight = new Region();
        highlight.getStyleClass().setAll("highlight");

        pane.getChildren().setAll(outerFrame, innerFrame, mainBack, main, highlight);

        getChildren().setAll(pane);
    }