A layer of low clouds creates the dark red line along the lower part of the profile.

一层低空云层在剖面图的下方形成了深红色的线。

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Then take the cloudy sky, set that layer on top of the just-color sky, and lower the opacity so that the clouds read much lighter.

然后，找来有云的天空设置在只有颜色的天空图层的顶层，并降低透明度，这样云就会变淡。

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