visual indicator

基本解釋

This setting displays a visual indicator on the iPhone UI that there is network activity in progress.
如此設置就可以在 iPhone UI 上顯示一個可見的指示器，表示有網絡活動正在進行。
The problem is that there’s no visual indicator of which apps are running, nor is there an easy way to exit them or force them to close.
Android存在的問題是，沒有明確的指示哪些應用程序是正在運行的，也沒有一個簡單的方法來退出或強制關閉。
As you drag a new widget onto the canvas, the editor provides a visual indicator, a green area color, and an outline view to help you place the widget where you want it.
在將新的小部件拖到這個 canvas 上時，編輯器會提供一個可眡的指示器（一個綠色的區(qū)域顔色）以及一個 outline 眡圖以幫助將這個小部件放在理想的位置。

"This kind of visual indicator is a great step, but alone it's not enough, " she says.
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There's also a handful of elements that we seldom see in these apps, such as a direction-relative wind indicator, optional motion-driven navigation and visual themes.
ENGADGET