If it is a file listing all the other paint tools, just copy the lines making reference to the paintbrush and rewrite them so they act on the gradientbrush.

如果某个文件列示其他所有绘图工具，只需复制引用这个paintbrush的行并重写它们，以便它们在gradientbrush上操作。

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For more detailed information please see the pages on Transparent Activation in our online reference or in your offline copy of the reference documentation.

要获取更详细的信息请阅读在线参考文档或者你拷贝的离线参考文档中有关透明激活部分。

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This is used to assign values to the templates by reference instead of making a copy. See the PHP manual on variable referencing for an explanation.

采用引用的方式赋值到模板中，而不是在模板中创建一个数值的副本。引用的概念可以查看PHP手册的变量引用部分。

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