@Override
  public Icon getIcon(@NotNull PsiElement element, int flags) {
    return element instanceof XmlFile &&
           ((XmlFile)element).getFileType() == XmlFileType.INSTANCE &&
           PropertiesImplUtil.getPropertiesFile((XmlFile)element) != null ? PropertiesIcons.XmlProperties : null;
  }
@Override
  public Icon getIcon(@NotNull PsiElement element, int flags)