def METHOD_NAME(self):
    """Restore the settings of all the application"""
    settings = self.__settings
    if settings is None:
        return
    parent = self.__parent()
    parent.METHOD_NAME(settings)
    settings.beginGroup("colormap")
    byteArray = settings.value("default", None)
    if byteArray is not None:
        try:
            colormap = Colormap()
            colormap.restoreState(byteArray)
            self.__defaultColormap = colormap
        except Exception:
            _logger.debug("Backtrace", exc_info=True)
    settings.endGroup()
    self.__recentFiles = []
    settings.beginGroup("recent-files")
    for index in range(1, 10 + 1):
        if not settings.contains("path%d" % index):
            break
        filePath = settings.value("path%d" % index)
        self.__recentFiles.append(filePath)
    settings.endGroup()