Switching between Windows and typing or moving the mouse will cause the focus indicator for that window to switch from 0 to 1.
切换窗口以及敲击或移动鼠标将导致该窗口的焦点指示器从0变为1。
2
You may see the progress indicator at the bottom right of the window for a moment.
此刻，在窗口右下角您将看到一个进度条。
3
The improved menu bar widget now supports an overflow indicator, shown in figure 2, when the window is sized down to a width that doesn't support displaying all the current top-level actions.