1: Doesn't understand it, hates the "wrong" colors. Can't get used to it.
2: Appreciates the candle-like colors, says it helps them sleep in the evening or relaxes their eyes.
I wonder if there's some sort of genetic difference? Maybe some people just aren't sensitive to bright light in the evening?
I think I speak for a lot of Flux users when I say that the point you really notice is when you're working late at night, and you turn off Flux after your eyes have acclimatised and all of a sudden you feel like you're in a tanning booth.
On the desktop I like it simply because it helps automatically "dim" my display in the evening. I don't use much artificial light in my room [it's basically a mancave after 5:00] so a bright display with the standard color temperature is just an exercise in eye-strain.
I can't be bothered to adjust my brightness, contrast, and temperature manually every evening to avoid eyestrain. Since my monitor doesn't have programmable presets, f.lux definitely provides a great [automatic] solution.
On my iPhone it's actually more of an issue, I find myself disabling it frequently. I think this is mostly because I use my phone in a wide range of "lighting contexts." I might walk from the man-cave to a fluorescent-lit kitchen, and then I'll go out into an incandescent living room.
In my car, I find the low color temperature kind of difficult to read, so I'll usually disable it for road journeys. (It probably doesn't help that I have a dark OS theme and my navigation application has a dark blue "night time" mode that is also time activated.)
Problems: in a lot of dim rooms, the monitor is the main light source, and some webcams have terrible auto white balance. If you're on a Logitech camera it's totally easy, and if you're on a cheap netbook, it's awful. Still, you can solve all that, and we probably will ship a version of this soon.
Granted, I use and like warm lighting at home. I wonder what would be the effect in a house/room that uses daylight lighting.
I'd say it's more of a personality phenomenon, but acknowledge the possibility you present as well.
If these theoretical contradictors are evenly distributed, spherical, and massless, then it seems natural that around 50% will be busy contradicting other contradictors, and writing well thought out and earnest posts about how great the software is.
One can only hope that they all get sent out into a vacuum.
1. the ones who discovered the "Slow" setting in preferences, and
2. the ones who didn't.
When the transition is set to Fast, I find it very jarring. When it's set to slow, I barely notice it.
Flux on my MBP is if anything even less predictable.
I also found when moving to my netbook to my MBP that I had to make very big changes to how much flux could change the colours - I have no idea what makes my previous settings so annoying on this computer, there's too many diferences between them to be sure.
On my MBP I completely ignore their recommended settings for lighting type. I picked the tone by adjusting the settings until it didn't feel like the light from my screen was physically attacking my eyes, which required a surprisingly small change in colour.
For anybody looking to correlate the two, I wrote the above and fall squarely into the "no music" camp as well.
Maybe we're just overly sensitive to any intrusion on our concentration. (I also prefer nobody throw hamburgers at me while coding, so there's a 3rd datapoint.)
I fall squarely into the "no music" camp, and have since I was a child where music during study would drive me crazy. Music while coding is just a distraction to me.
However, I really love F.lux/Redshift. One of the most relaxing and productive things for me is to work in a dim or dark room with the display shifted to a fairly low color temp. By contrast, during the day I prefer fairly high contrast, using the VividChalk theme in Vim. In the past I would switch to a lower contrast theme like OceanDeep, but never found one to work well with red hues yet, which I prefer in dim light (partially as a throwback to old amber monitors.)
As a side note, I will agree with everyone saying the automated time based shifts are annoying. I usually find myself pausing or disabling it. Having it triggered off ambient light levels is the logical way, imho.
I also prefer nobody throw hambmurgers at me while coding, but if they want to toss them onto the corner of my desk for later consumption, I won't complain...
I used to use the transparant filter with compiz, just to take the edge of some glare/brightness. I even tried a sepia/monochrome filter with some success. There was an error with compiz and my system, so had to give up on it.
Then I tried a light on dark theme. As I find the terminal comfortable, but I feel you need to match it across your desktop - otherwise it's jarring. That is going from light on dark to dark on light.
It seems support for darker themes is buggy at best on Linux. To the point that recently I had to undo my dark theming just because I need regular access to one spreadsheet.
Now I have a halfway house, browser is setup for light on dark, and the rest of my desktop is greyish. Still buggy though, something as simple as Google's search box is unuasable because I've a dark font on a dark background. And so it goes on.
I might give flux a go. I've installed redshift on XFCE - but it's not currently working. Edit: okay it took like 2mins to get it up and running. Not sure what to make of it. Will see.
I've got quite used to a light on dark them though to overcome brightness issues.
It seems to work well, and if you read the description, it seems like a lot of effort has gone into matching the two versions.
That's a condescending interpretation. Just because someone doesn't like something doesn't mean that they don't understand it.
If the same people are complaining about paper and other objects having the "wrong" colours at night, you might be onto something. I think that's highly unlikely though and I see little reason to seek a genetic explanation.
The point for me is not so much matching the environment but not staring at a blue screen right before bed.
Wikipedia corroborates this story, but indicates that a Navy study (from the 1980's) didn't find strong support for the practice.
Going to try it out again, "forcefully", for a longer while to see how it works out.
No, it's probably people not noticing that they have a problem and insisting that they don't. Happens all the time.