Comment 13 for bug 1321750

Caffeine is no longer an app, it just adds a behaviour to the system of preventing idleness when the focussed window is full screen. This is good when you're paying attention to the machine (e.g. reading a document, writing with long pauses, watching an unfolding cellular automaton) without touching it often enough to prevent idle behaviour.

It's now much less intrusive either visually or, more important, mentally on the user. The old interface was an unnecessary burden. That's often what happens when you try to extend an app to many different use cases, and exemplifies why apps, with their modes and preferences, are a bad idea in the first place.

I understand this won't suit everyone. In comment #8 I mentioned a GNOME extension that gives a simple manual override, and outlined a better approach to preventing idleness for long-running noninteractive programs.

All released versions of Caffeine are available in the PPA: https://launchpad.net/~caffeine-developers/+archive/ppa