They first read in the resource file the name and size of the font to be used (lines 64 through 70).

这些代码首先从资源文件中读出要使用的字体的名称和大小(第64行到第70行)。

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Then they overwrite the getter methods of DefaultMetalTheme so that the font and colors defined in the external resource file are used.

然后重写DefaultMetalTheme的getter方法，以便使用在外部资源文件中定义的颜色和字体。

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In the same way, you can create a high-contrast look and feel with white text on black background and normal font size just by providing another resource file as shown in Listing 4.

通过与之相同的方法，您可以创建一个带有白文本、黑背景、普通大小字体的高对比度的look and feel，您只需提供如清单4所示的另一个资源文件。

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