确保渐变条设置得与下图吻合，为此你要相应地去调整每个颜色的位置。

Make sure that the gradient matches the one in the image below, you will have to adjust the colour location accordingly.

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选择渐变工具，保持默认颜色（黑色为前景色，白色为背景色），你可以简单的点击工具栏上面的小图标快速设置。

Now select Gradient Tool from the layer palette, make sure that default colors are selected (black and white you can activate them simply by pressing D on your keyboard).

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在设置起止颜色之前，还可以通过修改globalalpha属性来产生部分不透明的渐变颜色。

Before you set the stop colors, you can also alter the globalAlpha property to allow partially opaque gradient colors.

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