@NotNull
  private JComponent createCenterPanel() {
    mySplitter = new OnePixelSplitter(true, "vcs.history.splitter.proportion", 0.6f);
    mySplitter.setFirstComponent(myDualView);

    JScrollPane scrollPane = ScrollPaneFactory.createScrollPane(myDetails);
    scrollPane.setBorder(IdeBorderFactory.createBorder(SideBorder.LEFT));

    myDetailsSplitter = new OnePixelSplitter(false, "vcs.history.details.splitter.proportion", 0.5f);
    myDetailsSplitter.setFirstComponent(scrollPane);
    myDetailsSplitter.setSecondComponent(myAdditionalDetails);

    setupDetails();
    return mySplitter;
  }
@NotNull
  private JComponent createCenterPanel()