Method onToggleChange

src/main/java/org/swdc/reader/ui/MainView.java:98–103

(Observable toggleObs, Toggle old, Toggle toggle)

    }

    private void onToggleChange(Observable toggleObs, Toggle old, Toggle toggle){
        if (toggle == null) {
            old.setSelected(true);
        }
        this.changeView();
    }

    private void setIcon(ButtonBase btn, String name) {
        btn.setFont(icon.getFont(FontSize.MIDDLE_SMALL));