To link a custom element with a pre-set shadow tree, you need to use the new element.

要在预设的影像树中链接自定义的元素，您需要使用新的元素。

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For this example we will set the background, Main Text, and SubText colours, set shadow.

在这个例子中，我们将设置的背景，主体部分，潜台词颜色，设置阴影。

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When you define a shadow replicate, its state is always set to the same state as the primary replicate.

当定义一个影子复制时，它的状态总是和基本复制的状态一样。

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Instead, use the NSShadowAttributeName attribute of the attributed string to set the shadow.

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Set in the impressive shadow of the seven star Burj al Arab hotel, the delegates will be taking in a variety of seminars, exhibitions, and the opportunity to network.

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