// --- visual representation - begin ---
private JPanel getVisualRepresentationTab(JSONObject loadObject) {
this.editorPane = new RuleEditorPane(this.editor.getStatusBar());
JPanel leftPanel = new JPanel(new BorderLayout());
leftPanel.add(new ScrollPane(this.editorPane.getVisualGraphs().get(0)));
JPanel rightPanel = new JPanel(new BorderLayout());
rightPanel.add(new ScrollPane(this.editorPane.getVisualGraphs().get(1)));
JSplitPane splitPane = new JSplitPane();
splitPane.setContinuousLayout(true);
splitPane.setOneTouchExpandable(true);
splitPane.setResizeWeight(0.5);