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I do web development on my Mac and I tend to have lots of windows open. Even per application, I tend to have multiple windows opened (ie a Terminal window for tail -f error logs, one for ssh, and one for local commands).

When I switch applications with tab, the visual effect on focused window is subtle and I often get confused and perform commands on the wrong window. For example, I switch to Terminal and do w to close a tab on the tail -f command, but I accidentally closed the ssh tab!

Is there a Mac program that will highlight or do some more effects on a focused window when I switch applications?

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up vote 3 down vote accepted

If a paid app is ok, HazeOver darkens everything but the active window slightly.

Note that I haven't used it, so I can't speak to it. It has a 4 star review, but the only review for the latest version is negative.

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It's been updated recently and has 5 stars for current version. – pointum Jun 4 '15 at 23:04

This is Mavericks specific, but Honer will draw a border around the active window. You might also want to combine it with this app that removes window shadows.

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Also works on Yosemite, and is exactly what I wanted, thanks a lot. – chmac Mar 30 '15 at 10:41

HazeOver works very well for me (in 10.10.5 as of this writing), and plays well with f.lux. HazeOver can be changed (quickly) to highlight the active window and dim everything else (even pretty much hide it entirely, for "focus" or "theater" mode), or to highlight all windows of the frontmost app, and dim the rest just a little, which I use a lot when writing or developing. Honer can be run at the same time, though I find its responsiveness too slow for my tastes, and it gets confused a lot, especially by float-on-top dialogs).

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Isolator is free and pretty good.

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We're looking for long answers that provide some explanation and context. Don't just give a one-line answer; explain why your answer is right, ideally with citations. Answers that don't include explanations may be removed. – Tetsujin Jan 20 at 12:42

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