"Are those historical colors?" wonders the visitor gazing upon the Clover Forest Manor Home's happy yellow clapboard and equally ebullient green shutters. Well, Mr. Einstein might have responded, "It depends on the moment in time." What else if not the white of the Magnolia's blossom and the dark green of its leaves epitomizes the historical "Southern home"? We are all accustomed to the ubiquitous color scheme. And, true to form, if you traveled to the historical Colonial