For the hairs, use a 1 pixel soft brush with a dark brown color for the shadows, and a light brown for the lights.

对于头发，使用1像素暗棕色的软毛刷绘制阴影，和褐色绘制亮部毛发。

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These artifacts, commonly seen as blurry or "soft" edges, can occur when the location of an edge falls in the middle of a device pixel rather than between device pixels.

这些项目通常被视为模糊边缘或“柔化”边缘，当边缘位置处于设备像素的中间而不是两个设备像素之间时，就可能会出现这种现象。

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