To change the color click on the Create new fill or adjustment layer icon at the bottom of the Layers Panel and choose Hue/Saturation .
要更改色调，需点击图层面板底端的 创建新的填充或调节图层 按钮，并选择 色相/饱和度 。
When you're done, fill in any areas on the right and bottom with black so that the whole canvas is covered by this layer.
你选中以后，在右边和底下区域黑色填充，这样这层就覆盖在整个画布上了。
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