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I have some questions / issues before I blindly use this software:

1) It's not open source, or is it? I don't see anything about getting the source. In today's world, utilities like this are open source, or have an open source alternative. This is something that runs in the background of my computer all day, every day, so I would like to know what's going on.

2) How does this affect graphic design? Does it make it impossible to get colors just right?

3) Why does this matter? My lights are on in my office. It's ALWAYS the same brightness in my office, all the time. Daytime. Nighttime. I don't really understand what my monitor is adjusting to. Is it JUST that my eyes are probably more sensitive when I'm tired? If so, that makes sense I suppose, but how does it know that I'm tired just based on the time that I'm using my computer?

Anyway, I'm not trying to be negative, these are just the questions I have and the reasons why I haven't jumped on the bandwagon yet.



2) Everybody says not to use it for graphic design... but I haven't found any problems. I think my brain judges colors relative to whatever the "white point" is, and there is always enough white/gray in my OS interface to judge photos or artwork alongside. Remember, color perception is fundamentally relative. When I look at my work the next day, it looks just like I remembered it. But other people have found the opposite, though -- it may be a personal thing.

3) It's not about brightness, it's about color temperature. If you have fluorescent lights in your office that are on at 10pm, you're right, it's not going to help. It really only makes sense to use F.lux under non-super-bright warm-ish nighttime lighting, or in a dark room.


It's not open source. The Linux client for xflux, the proprietary executable that f.lux runs on, is open source. Redshift is an open source Linux alternative.


Do you really take time to read and comprehend the source of every program before you decide to install it so you know what is doing? How important is that criteria for you?


To your second question, it has a setting to be disabled while you do color-sensitive work.


You can easily disable it temporarily when you need color accuracy.




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