@Override
  public void appendFileName(final ChangesBrowserNodeRenderer renderer, final VirtualFile vFile, final String fileName, final Color color, final boolean highlightProblems) {
    int style = SimpleTextAttributes.STYLE_PLAIN;
    Color underlineColor = null;
    if (highlightProblems && vFile != null && !vFile.isDirectory() && myProblemSolver.isProblemFile(vFile)) {
      underlineColor = JBColor.RED;
      style = SimpleTextAttributes.STYLE_WAVED;
    }
    renderer.append(fileName, new SimpleTextAttributes(style, color, underlineColor));
  }
@Override
  public void appendFileName(final ChangesBrowserNodeRenderer renderer, final VirtualFile vFile, final String fileName, final Color color, final boolean highlightProblems)