Database Users

Saturation, Contrast, Sharpness, Vibrance & Hue

As I recently posted here. I currently have an epson and novatec evo.
One thing that made me say hmm is that the major difference seem to be things that are normally adjustable (monitors & TV's)
So how could we go about changing these settings?
In Linux I know you can use shell to change most things.
For example xgamma.
Speaking of which I believe those could be ported.. but this isn't XOrg, so could be hard.
Also I know ATI has aticonfig, which allows you to change those settings in shell as well.
We have Adreno GPU's by Qualcomm made specifically for phones, and I doubt that could be ported but it's another thought..
Is there any friggin way we can adjust these settings?
Any ideas? Kernel-tweaks, anything?
I feel like for the super-duper phones we have this can't be too much to ask.
I'll look into it more once I choose which one to keep and re-root but until then I was hoping I could get some community input

topdnbass said:
As I recently posted here. I currently have an epson and novatec evo.
One thing that made me say hmm is that the major difference seem to be things that are normally adjustable (monitors & TV's)
So how could we go about changing these settings?
In Linux I know you can use shell to change most things.
For example xgamma.
Speaking of which I believe those could be ported.. but this isn't XOrg, so could be hard.
Also I know ATI has aticonfig, which allows you to change those settings in shell as well.
We have Adreno GPU's by Qualcomm made specifically for phones, and I doubt that could be ported but it's another thought..
Is there any friggin way we can adjust these settings?
Any ideas? Kernel-tweaks, anything?
I feel like for the super-duper phones we have this can't be too much to ask.
I'll look into it more once I choose which one to keep and re-root but until then I was hoping I could get some community input
Click to expand...
Click to collapse
It's probably possible. There is SurfaceFlinger (the Android graphics library, think XWindow or Xorg). You can tweak temperature settings in it, or turn certain pixel colors on/off. We may be able to accomplish something with it by tweaking things there but I've never messed with it.
Another way would be in the kernel for the panel init sequences, but they may or may not be in there. You'd need documentation to know what all the values do. I think we have the whitepaper for the Nova panels but I'm not sure about the Epson.
Hope this helps!

Thanks!
Yeah I was looking into SurfaceFlinger after hackaday managed to disable all led's except red for the nexus.
That's definitely a possibility.
I'll look into that, hopefully i'll get somewhere.

Finally, somebody else brought this up; I made a thread about this a while ago but didn't get much out of it lol. It would be really cool to level out the purplish tint on the nova's and even just to have the ability to mess with the saturation and contrast and things like that. Has there ever been app that does this for other android devices? Maybe that could help.

i've thought it weird that there the adjustments aren't avaialable in phones yet. a $200 netbook has no problem changing these settings, but a $500+ smartphone has no options.

We gotta bump this thread and hope somebody gets some real good ideas lol.
I'll see what I can do, cause this is something every smartphone should be capable of.

Screensavers for android phones?

There was only one previous question about this issue, but no replies!
I was thinking of something like the HTC deskclock but working as a typical screensaver, i.e. it runs when the screen is off.
Any suggestion?
Astro

I dont think many people would use this.. As it is, most smartphone users are looking to increase their battery life, and the single biggest battery drain is having the screen on. Ontop of that, Live Wallpapers, and in extension screensavers, tend to use battery power like mad since they are constantly re-drawing the graphics. Docks (like cradle and car docks) are only useful cause they are general plugged in when in use.
The only way I could see them being semi-useful, is if you set your backlight brightness to very dim which would save you most of the screen on power loss, but you'd still suffer from the constant redraw and processing power.

A screensaver is (and that is not my opinion but a fact) probably the most useless peace of software that can be running on a smartphone (for arguments see the previous post )

Thanks for the replies.
However, a low consumption dim clock would make a great addition to android phones and would be a useful tool for the ones using their phones as watches as I do. I never meant to ask for a flashy screensaver such as the ones you find on computers.
Astro

astrovale said:
Thanks for the replies.
However, a low consumption dim clock would make a great addition to android phones and would be a useful tool for the ones using their phones as watches as I do. I never meant to ask for a flashy screensaver such as the ones you find on computers.
Astro
Click to expand...
Click to collapse
That's still going to use up your screen and CPU. As previous posters suggested, it is not recommended, unless you want your juice to run out before you even manage to come from work. However maybe 'Digital Clock' does something similar that you need?

I believe it IS possible! All you need is to set the screen refresh rate to 1/60 a second, make it go to minimal brightness, make the text cover as small area as possible, make it grey, dark grey, and add the refresh cycle to the cycle where it checks for some regularities, like cell signal.

Dany0 said:
I believe it IS possible! All you need is to set the screen refresh rate to 1/60 a second...
Click to expand...
Click to collapse
You can't do that. At least not without modifying the kernel...

And what is blocking you from doing that?

astrovale said:
Thanks for the replies.
However, a low consumption dim clock would make a great addition to android phones and would be a useful tool for the ones using their phones as watches as I do. I never meant to ask for a flashy screensaver such as the ones you find on computers.
Astro
Click to expand...
Click to collapse
afaik that is included in the default ROM?

waebi said:
afaik that is included in the default ROM?
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Click to collapse
Desk clock innit?
--------------------
DeFroST FAQ... http://forum.xda-developers.com/showpost.php?p=6622965&postcount=2

Dany0 said:
And what is blocking you from doing that?
Click to expand...
Click to collapse
Google's API. If you mean kernel, then nothing, apart from the warranty grey area.

martino2k6 said:
Google's API. If you mean kernel, then nothing, apart from the warranty grey area.
Click to expand...
Click to collapse
Don't forget the fact that you need some knowledge on the subject in order to actually do anything about it.

zHk3R said:
Don't forget the fact that you need some knowledge on the subject in order to actually do anything about it.
Click to expand...
Click to collapse
Very true indeed...

Screen is damn bright!

Screen is a bit too bright for me even on the lowest settting. I remember reading about an app that let's us knock the brightness below the minimum level, ideal for night reading by all accounts.
Can anyone tell me what this app is called? Does it need root?
Thanks.

No root necessary.
http://www.appbrain.com/app/screen-filter/com.haxor

Thanks I will give that a go ... not to keen on this bit though :
"Known issues: - Gingerbread: Filter prevents interaction with Gmail. "
Is this the only one available so far?

It's just buggy. It will "turn off" by itself, and yes mostly when you switch to Gmail. Gets the job done though.
Sent from my Nexus S using Tapatalk

Thanks i'll try it I'd that's the extent of the issue.
Edit: works brilliantly for occasional use bit I'd like something that can be applied permanently and system wide if possible. Don't know if anything exists though... yet?

Nothing else exists, sorry.

ryude said:
Nothing else exists, sorry.
Click to expand...
Click to collapse
OK thanks. Out of interest, am I the only one that finds the nexus s screen just too bright?
I'm sure an app will come along that caters for this if it's seen to be a common observation (though I'm not sure it is).

Na, quite a few people find the screen very bright.. right now Screen Filter is your only option.

Superfrag said:
Na, quite a few people find the screen very bright.. right now Screen Filter is your only option.
Click to expand...
Click to collapse
Hmmm, let's hope that changes soon! Thanks.

xspyda said:
OK thanks. Out of interest, am I the only one that finds the nexus s screen just too bright?
Click to expand...
Click to collapse
i don't have this issue. i keep mine on about 40%

Once the devs start doing custom kernels, we'll get one that can go dimmer. Supercurio, the VooDoo lag-fix guy for the i9000 and other Galaxy S versions is big on color correction and gamma and all of that. One of his early fixes including making it less bright on minimum. He's looking to get a Nexus S, once he does we'll see lots of good stuff.
Meanwhile, even without one, he's chugging out lots of stuff for the NS community. Big fan of his work.

CM9 devs and users attention please! Severe clipping in CM9 based ROMS

I have installed Paranoid Android on my Note and noticed that there is severe clipping in the CM9 UI elements. Even the default ICS wallpaper , the one with the"rainbow" coloing stripes show severe clipping on the lockscreen. It looks just plain ugly. And since most of the CM9 UI backgrounds are a shade of grey, there is severe clipping of these grey elements to a purplish pixellation and to black. You can notice this if you take the settings page in Paranoid android or any other CM9 based ROM (assuming most CM9 based ROMS have the same default theme) Look under the status bar where the grey background fades to black and you may notice severe pixellation like issues at that area. Now, go to advanced, screen settings and MDNIE mode, you will notice that the clipping keeps changing when changing modes but its still there in every screen mode.
How many of you are experiencing this? Assuming a majority of the people who run Custom ROMS run a CM9 based ROM, why isnt this issue reported anywhere? I'm asking because, the issue is plainly visible in these grey areas and UI elements making the visual experience really bad. And why is Gamma Control disabled in these CM9 kernels? I believe lowering the gamma would solve the problem.
I've noticed that CM9 kernels have the worst clipping whereas in other stock based kernels, the clipping is comparitively lower, closer to the stock kernels.
So once again users of CM9, please do report if you face this issue.
CM9 users please report back because I havent seen anybody talking about this issue in any of the CM9 related ROMS thread. People seem to ignore an issue which stares back right at the face even in ambient lighting. Why havent this been reported?
I dont have much idea about who develops CM9 kernels for the note. How can we contact the CM9 developers and let them know of this issue and request to enable Gamma Control within the kernel?
Somebody please help me out here. Because its been a month after I bought my note and I've been struggling and doing my best to find a solution to this horrible clipping. I had got in touch with GSMArena and got this issue published, yet Samsung never responded, I tried kernel after kernel and realised that the intensity of the issue varies from kernel to kernel. I've seen that whomever I ask about the clipping in this forum says they have it but then everyone seems to be happy running different ROMS and in these CM9 based ROMs which look as close to stock Google ICS UI have severe clipping all over the UI and yet people dont seem to bother.
So what can I conclude from this? Is this an isolated issue or are all of you Note users who have this issue just keeping silent and living with it?
I do not mean to spoil anybody's peace or anything. I clearly dont know how to get in touch with the CM9 devs for the Note, somebody help me if possible. And if you feel that this is an isolated issue, do let me know otherwise. Because, when the basic UI shows severe clipping, the whole user experience is spoiled and nobody wants to live in fear with bright UI elements and bright wallpapers dreading the clipping if anything at all has to be dark. We paid a premium for this device and even Samsung seems to ignore. I have the SGS3 and there is no clipping on it but just that everything seems darker on the GS3 when compared to the Note. This alone shows that Gamma is a culprit here and I could just sell away my Note and just live with the GS3. But that doesn't help anybody who is facing this issue and wants to see a solution. Even I personally like the note more than the GS3 and I want to keep it but for this issue. Not everybody has the money to jump to the next flagship every now and then and for the people who spent their money on the Note doesn't have to "live with it" just because they decided to buy it without knowing such an issue existed. Not every store lets you try and trial their devices before buying them.
Samsung has even seemed to ignore the EMMC issue even after claiming they are "working on it" I dont see anything productive from Samsung's side as even a device which was previously unaffected had the affected kernels pushed to it via an update. So basically if it was not for people like Entropy who works day and night for that issue, Samsung could keep replacing motherboards for every random wipe a user does. They basically want to sell the note until the Note 2 and then this wouldn't be their problem anymore. Problems like the emmc bug is a MISTAKE from Samsung's part and they should be ready to repair devices even beyond warranty as the user may have only done the most harmless thing, i.e to reset the device to factory settings.
So, coming back to topic, how do we get in touch with the CM9 devs and enable gamma control on these ROMs? Most ROMS have gamma control under MDNIE settings which is greyed out, most probably because the kernel doesnt support it. This is the best I can do for the people who are affected by the clipping issue as I'm not a developer. This issue isnt an isolated case in my opinion and affects every Note I've got a chance to see.

It might help if you actually posted requests in the cm9 discussion thread? #commonsense

Seriously after reading TS long posts still*cannot figure out his problem
please post shots to show your issues
I have been using CM9 roms since build 2 and do not seem to notice such issues or maybe i am blind ?

mobile88 said:
Seriously after reading TS long posts still*cannot figure out his problem
please post shots to show your issues
I have been using CM9 roms since build 2 and do not seem to notice such issues or maybe i am blind ?
Click to expand...
Click to collapse
Yeah. OP is TL;DR complaining about some "severe" issue I've never seen and no one else has.
As to gamma control being disabled - I should remove that from the settings app, as that's something supported by the I9100/I777 display driver but not ours.

Entropy512 said:
Yeah. OP is TL;DR complaining about some "severe" issue I've never seen and no one else has.
As to gamma control being disabled - I should remove that from the settings app, as that's something supported by the I9100/I777 display driver but not ours.
Click to expand...
Click to collapse
Oops..I'm sorry for the long post. Its basically about the severe "black clipping" which has been affecting the Note since release. This issue is best seen when displaying dark shadows in images and videos. There were many threads discussing this issue. And GSMArena had published this issue in their news after I mailed them about the same.
What I wanted to tell was, I feel this is caused by the Note's screen having the gamma cranked up quite high and I believe lowering the gamma would resolve this issue.
The default CM9 theme shows severe clipping in backgrounds and UI elements. All the grey backgrounds, (the default theme) clip to black just below the status bar.
Even all the videos which have dark shadows are totally blocky due to this and the clipping makes them literally unwatchable.
I had reported this issue to GSMArena
http://www.gsmarena.com/samsung_galaxy_note_plagued_by_display_issues-news-4513.php
I wanted the Gamma Control feature which is presently disabled to be enabled in the CM9 kernels so that we can tune down the Gamma to eliminate this clipping
The same issues existed on the GNexus and was fixed with the Lean Kernel which had Gamma Tuning.
So once again, in short, I'm talking about the "Black clipping\crush" on the Note when displaying darker shades of colours.

All the notes have this problem, and we need to access to gamma control but as supercurio said it won't solve all the problems of the black clipping and banding issues
Sent from my GT-N7000 using xda premium

Satishp, i know what are you talking about. Just take a picture of your note and post it here. Of course, you won't use a screenshot feature but a camera.
I sold my note bc of the black clipping issue, but now I cannot buy an s3 or HoX cause their screens are just to small, that is, narrow. Gonna buy Note again and hope some solution will come out. It is too bad to buy a phone for its screen and get a crappy quality. Issue on s3 is solved with lowered gamma. Comparing with the Note, s3 has much darker screen. Sometimes too much.

Entropy512 said:
Yeah. OP is TL;DR complaining about some "severe" issue I've never seen and no one else has.
As to gamma control being disabled - I should remove that from the settings app, as that's something supported by the I9100/I777 display driver but not ours.
Click to expand...
Click to collapse
It's a very real issue affecting EVERY Note, derp

NotablyNice said:
It's a very real issue affecting EVERY Note, derp
Click to expand...
Click to collapse
http://www.gsmarena.com/samsung_galaxy_note_plagued_by_display_issues-news-4513.php

Huh?
Everytime I turn my screen on I smile at how awesome it is..Hell it seems even better now that I have been using cm10 but i think thats just because its brightness seems to be overall set higher.

MrDSL said:
Huh?
Everytime I turn my screen on I smile at how awesome it is..Hell it seems even better now that I have been using cm10 but i think thats just because its brightness seems to be overall set higher.
Click to expand...
Click to collapse
Same. I don't often stare at my phone from a distance of 3cm to see any imperfections.
Sent from my GT-N7000 using xda premium

All of the speculation and misinformation of this issue is really starting to get frustrating. First, the issue IS with the hardware. It may be possible to reduce it's impact using software but the fact remains this is a hardware issue. How do I know? I have replaced my Note's screen and the newer screen I have isn't as good as the old one.
The new one isn't awful, it simply isn't as good as the other.
2nd point - everyone will have this issue. It is simply an inherent problem with the screen hardware and it is completely implausible that there are 1 or 2 'perfect' screens out there. There will simply be variations. Some people WILL have better screens than others. For some people the issue may be completely unnoticeable and for others it will be glaringly obvious. Don't judge or hate on people because their screen is worse than yours and vice versa.
3rd the issue is MORE noticeable at lower brightness values than high brightness values. If you have your note on higher brightness values then you're unlikely to notice it. In my case, I can not see any clipping if I am in a lit room. The only time I can see it is when I'm sat in the dark with very low brightness. As I said above this will vary from person to person.
I have attached 2 photos below. One is a normal exposure where you can see the clipping is hard to see. Another is a long exposure which amplifies the issue more and makes it more noticeable (I used a longer exposure on my camera to show this). Fortunately it isn't so bad for me, but for some people my long exposure image is the reality unfortunately.
Standard: http://i48.tinypic.com/4uxnia.jpg
Long Exposure: http://i48.tinypic.com/5akew3.jpg
Why have we got a clipping problem and can software solve it? I believe it is highly unlikely that this issue can be solvable. I also think the issue stems from one simple shortcoming to the screen; the minimum brightness achievable per pixel. The problem is the jump from this minimum brightness to the 'off' (perfectly black) pixel is too great. There is no transition. Can gamma control solve this? I'm not convinced. I think the issue is more to do with what the lowest pixel brightness the screen is capable of. For the poorer people this minimum brightness will be quite bright. For others the minimum brightness will be lower.
If any devs know of a way of controlling pixel brightness on a level where it can be noticeably changed and if it is possible to reduce this minimum brightness then sure, it would certainly be a possibility. But I don't think this is possible.

Part of this might be a limitation of the HD Pentile AMOLED technology. But if you notice, both the Galaxy Nexus and the Galaxy S3 share the same technology. For people who argue that the S3 uses a different manufacturing procedure, Samsung has no where mentioned this and its just an assumption.
The GNexus had the same issue but was solved with the LEAN kernel which implemented a gamma control within the kernel. If you've seen the S3's screen ( I own an S3 too, So I've spent a good time comparing), you will notice that the S3's screen is visibly darker than the Note's screen. Images tend to look darker and this shows that the S3's screen has its gamma set to a lower value which eliminates the clipping.
More proof for you, lets take the gammatest image and view it on our PC. Most PCs use an LCD display and still you can see the greys gradually fading to black.
Now increase the gamma of your display from your display adapter's color settings and view the same image again. You will see that you can see all the way upto 1 and then black just like how the image is displayed by the note.
http://forum.xda-developers.com/showthread.php?t=1800117
Now view a 720p or 1080p clip on your PC with the gamma values still high, you will see the clipping in every dark scene. Try it yourself.
This shows that gamma calibration can correct the issue to atleast some extent.

Hmm. There appears to be truth in what you say. Unfortunately the Note is lacking somewhat in the developer department. And the few devs there are have other pressing issues to deal with so the question becomes who can implement gamma control on the Note?

MrDSL said:
Huh?
Everytime I turn my screen on I smile at how awesome it is..Hell it seems even better now that I have been using cm10 but i think thats just because its brightness seems to be overall set higher.
Click to expand...
Click to collapse
Yup. Despite being pentile, compared to my I9100/I777 the screen is even more gorgeous.
I'm on minimum brightness nearly all the time. No clipping issues whatsoever.

MrDSL said:
Huh?
Everytime I turn my screen on I smile at how awesome it is..Hell it seems even better now that I have been using cm10 but i think thats just because its brightness seems to be overall set higher.
Click to expand...
Click to collapse
Yup, and it's even better when you switch the screen mode to "Dynamic" (Advanced Settings).
Sent from my GT-N7000 using xda premium

I have the clipping regardless of which mode I put it in, apart from the clipping the screen is mint, which makes me even more pissed off when I watch a movie and a dark scene comes on, then the shade between black and grey turns into a lego block mess. I really cant beleive so many people are happy with it, half of u guys must be blind, I exchanged my Note twice, tested my cousins and my bosses Notes, all have the exact same problem. I even bluetoothed the gamma test image to a few in carphone warehouse , same with them, even the samsung rep I spoke to over the phone said the one they have in the office also has the issue. Total crap imo, Samsung total FAIL.

Entropy512 said:
Yup. Despite being pentile, compared to my I9100/I777 the screen is even more gorgeous.
I'm on minimum brightness nearly all the time. No clipping issues whatsoever.
Click to expand...
Click to collapse
Actually use your Note and go watch a dark movie... It's there

NotablyNice said:
Actually use your Note and go watch a dark movie... It's there
Click to expand...
Click to collapse
I've watched plenty of dark movies... As good as if not better than my I9100/I777.

Entropy512 said:
I've watched plenty of dark movies... As good as if not better than my I9100/I777.
Click to expand...
Click to collapse
Please take a picture if your note displaying the gamma test image (blocks numbered 1 to 20) with stock gallery app in a dark room, screen mode dynamic, max brightnes with auto adjust switched off, I bet number 4 is light grey, then number 3 is black, if so your device has black clipping. There should be no abrupt drop from grey to black, it should be a gentle fade.
Thanks.

SNote sucks

First the brightness issue,
Now that I actually tried to use it for a extended period, I'm finding my palm always hits the edge and moves the scrollbars
I had a tablet pc many years ago that provides a much better note taking experience

Cool Story Bro

Mine is awesome.
Sent from my GT-I9300 using Tapatalk 2

dtziheucdavis said:
I'm finding my palm always hits the edge and moves the scrollbars
Click to expand...
Click to collapse
Poor Samsung. First, everyone *****ed about the panning box they used to allow you to move through a note you're working on. Then, they changed it and replaced it with a scroll bar and people are *****ing about that too. I don't know which version of S-Note you're on but in the version included in JB with "only recognize the S-Pen" enabled it's really really hard to inadvertantly hit the scroll bars so maybe that'll solve your problem. As for the brightness being ramped up in S-Note I get the logic and it shows how much they think about how people use their devices and apps. If you think about, since the Note's a drawing device, people could be using it at any angle and in any position. Disabling auto-brightness kind of makes sense so that the screen doesn't fade in and out if someone's hand is over the ambient light sensor. Oh well, you can't please all the people all the time.

"version included in JB"
Jelly Bean? I thought the US Note 10.1 were still in ICS

dtziheucdavis said:
"version included in JB"
Jelly Bean? I thought the US Note 10.1 were still in ICS
Click to expand...
Click to collapse
Doesn't mean that you can't flash another rom...

I don't use autobrightness so it changing the levels drives me absolutely nuts. E.g. I'm working in a dark room so have the level turned down to what suits me best. I open snoteb and up it goes. I turn it back down manually, jump to another app for a moment for whatever reason, say to read some info in a pdf, switch back to snote and, bam, blinded again.
There's a reason why autobrightness can be toggled on and off, and one app ignoring that convention is infuriating.

actually if you use autobrightness, the brightness levels still change

"Disabling auto-brightness kind of makes sense so that the screen doesn't fade in and out if someone's hand is over the ambient light sensor. Oh well, you can't please all the people all the time."
If this is the case, then there are definitely better solutions than the one Samsung implemented. For example, putting a timer on the ambient light sensor so it doesn't react to accidentally being covered up. If it's only briefly covered up, the brightness won't change. If it's really in a dark room and sensing low light with no interruption for say 1 minute, then change the brightness.
So, it's hard to believe that Samsung would make SNote change the brightness autmoatically as a "feature". Samsung makes great products, but we dont have to idolize them the way that iOS Sheep idolize Apple.

dtziheucdavis said:
So, it's hard to believe that Samsung would make SNote change the brightness autmoatically as a "feature".
Click to expand...
Click to collapse
OK, since we know it wasn't done accidentally, care to take a more reasoned guess as to why they did it?
Samsung makes great products, but we dont have to idolize them the way that iOS Sheep idolize Apple.
Click to expand...
Click to collapse
If you're referring to me I chose the Teg3 One X over the SGS3 and am very happy with my choice. Here's a demonstration of my lack of idolization. In JB, putting the multiview selector to the right of the more important and more often used "settings" selector wasn't very well thought out from a usability perspective.
S-Note turning up the brightness works fine for me and I kind of like it since auto-brightness tends to be on the dim side normally. I'd probably like it less if I frequently took notes in a dark room which I don't. I don't assume everyone uses their device like I do so I certainly wouldn't invoke my opinion of a feature on others.

This is why I use lecture notes.

There is no brightness ISSUE.
They increase brightness on purpose to make drawing more precise.
You can never satisfy everyone....

Can someone share the apk of the first version with no bars?
Sent from my GT-N8000 using xda app-developers app

bsilvino said:
Can someone share the apk of the first version with no bars?
Click to expand...
Click to collapse
You can't upgrade or downgrade S-Note with just the single APK. There are supporting files that have to be changed along with it. When PDF import was borked on some versions of S-Note folks tried to update it with a newer version of the APK alone and it failed.

Actualy, I did the backup with titaniun but when I tried to restore now I am getting FC. Any idea how can I fix it then?
Sent from my GT-N8000 using xda app-developers app

legion1911 said:
There is no brightness ISSUE.
They increase brightness on purpose to make drawing more precise.
You can never satisfy everyone....
Click to expand...
Click to collapse
Yes they can, they can let us make up our own mind as to what level of brightness we want, the same as we do with every other app. Why bother having a brightness setting at all if that's the case, just get rid of it entirely as they know better.