Figures 3 and 4 show more formally where additional plug-ins can display their contributed UI elements in the main window. The scope of these UI changes can be large or small.

图 3 和图 4 更为正式地展示了附加插件在主窗口中呈现的 UI 元素，这些 UI 变化的范围可大可小。

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Listing 1 shows the XUL that tells Firefox what chrome (that is, UI elements) to display.

清单1所示的XUL将通知Firefox显示哪些chrome(即ui元素)。

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As the scroll Viewscrolls, reuse the UI elements to display content that has scrolled into view.

由于滚动视图，重用ui元素来显示可以滚动显示的内容。

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With this API an app can adjust the display of its UI elements that would access the data class.

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Ironically, running 1.6 on this high res display actually ends up looking worse than a regular low-res screen, due to the blurry icons and UI elements.

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