Lighting can change your perception of carpet color, making it look like particular areas are lighter or darker than others. The lighting environment between a carpet retail store and your home may also vary, therefore we recommend that you take a sample of carpet and view it in your home for color before making your final purchasing decision. Also, during use, pressure on carpet pile causes the pile to lie in different directions creating the effect of “shading”. This shading is a characteristic of cut-pile carpets (particularly solid color). Though on occasions dramatically affecting appearance, it has no detrimental effect on the performance of the carpet.