darkening the glass by several tones to black. protects the driver and the crew from uv radiation. however, you cannot see

argenteostriatus background bamboo beautiful blue sky brick building bunch china clump colorful concrete detail evergreen factory fargesia fence foliage forest garden grass grate gray green hedge landscape landscaped leaf lush mulching murieliae natural nature outdoor outdoors park patio phyllostachys pleioblastus rufa sasa shady side south korea stone urban winter wood chips wooden yellow