The application button, which is positioned in the upper-left corner of the application window (see Figure 1), opens up
the application menu (see Figure 2).
Figure 1 Application button
Figure 2 Application menu
The application button supports both the ScreenTip (see Figure 3) and KeyTip (see Figure 4) functionality.
Figure 3 Application button with the ScreenTip
Figure 4 Ribbon KeyTips