主题惟一的作用就是提供要使用的颜色和字体的值。

The only purpose of the theme is to provide the values of the colors and fonts to use.

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如果您不熟悉主题，那么抽象类MetalTheme提供了一个抽象外观使用的颜色和字体的方法。

For those unfamiliar with themes, the abstract MetalTheme class offers a way to abstract away the colors and fonts used by the look and feel.

youdao

他们使用巧妙的布局、迷人的图像和颜色，通常创作出某种主题，如大海或博物馆风格的主题。

They use clever layouts, and lovely images and color, usually working around a theme such as "Like the sea" or "Museum".

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