Thinning and shading experiments have confirmed this. 疏伐和遮光试验已证实这种情况。
Go up in the feeling with light color and gray shading can make little space greatens, do not need any illumination, the shading of white and gray greatened this hut. 用浅色和灰色遮光在感觉上可以使小空间变大，不需要任何光照，白色和灰色的遮光就将这间小屋变大了。
