Caffeine-indicator allows the user to prevent the desktop becoming idle, and hence stop screen savers or
power-saving activating even if the machine is not being used.
It is usually more convenient to use the fully-automatic caffeine(1), or the caffeinate(1) wrapper.
Caffeine-indicator may be useful when it is not practical or possible to run an application in full-
screen mode and it is also not desirable to inhibit idleness for the entire time the application is
running, for example, when watching a video with side notes, or displayed in a browser widget that lacks
a full-screen mode.