This will not work, because the Macbook Pro models still have PWM at 100% brightness
I disabled dithering on Apple silicon + Introducing Stillcolor macOS M1/M2/M3
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Hunter20 You're mostly correct in that all of the mini-LED Pros and all of the Airs do in fact have PWM at max —
however, the one exception is the "touch bar and USB-C only" 2022 M2 model (and possibly the touch bar 2020 M1 as well) which actually does not have PWM on the main internal display at max!
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For me, the worst "feature" of these screens is the the super-bright, angry, unnatural whiteness. This bothers me way more than PWM or dithering.
If this is you, adjusting the white point can help. This is a different effect than using a NightShift type solution that puts a color tint over the screen. I use BetterDisplay image adjustments control the white point. It does not make the screen all day comfortable though.
But still, if you dim using an overlay on a LCD screen, you will only change the shown colors to appear darker at pixel level, but your backlight will still emitt at 100% strength.
In theory it should only work for oled panels, because they have no backlight, every pixel emitts its own light (but the panel has ofcourse to be pwm free at 100% brightness)
If anyone is interested in lowering the white point of the MacBook Pro M2 TB with the good screen, I can share a D55 screen profile generated with a Calibrite Display SL colorimeter. These screens are very accurate after being calibrated to 5500k (Avg DeltaE of 0.5). This is likely to be much more accurate than BetterDisplay tweaks.
(I've always calibrated all my displays to a warmer white point than the native D65; even apart from the blue light and eye strain angles, D65 has never really made sense to me for reading.)
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karut I don't think this forum supports non-image attachments, so here's a link to the calibrated display profile: https://we.tl/t-ZZdQYVUMd9 Let me know what you think 
BTW, for these MBP M2 TB machines, I don't recommend disabling Uniformity2D.
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Avoid 14" M2 MBP at all costs.
They're talking about the 13" (USB-C only, with Touch Bar) M2 MBP model, which is different.
13" used to be sold in the refurbished store a few months ago, but not anymore. You'll have to buy used.
Make sure the seller has a return policy, because there is a screen lottery. Only 13" M2 units that show many 00000000 in the LCD panel ID have potential to be more comfortable. The ones with more "random" looking panel IDs are bad.
DisplaysShouldNotBeTVs Ok, I recall, this was kind of one leg in a past type of model, so perhaps they have used some older supply chain parts for it.
Could someone help me with installing this application? When I download it and try to open it, this is the message I get: "Safari can’t open the file “Stillcolor” because no available application can open it."
Hello Guys!
I need a new laptop. Is there any Macbook Air that is flicker free and dither free (even with apps like stillcolor)?
Thanks!
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dnm3 Is there any Macbook Air that is flicker free and dither free (even with apps like stillcolor)?
Nope
(Unless you only ever want to use it with an external monitor and never look at the internal screen, but that defeats the point of a laptop)
The closest thing I've been able to achieve to a "portable" "Mac" that doesn't mess with my eyes - is just streaming a Mac (with it's display closed) to a really old and comfortable Windows 8 laptop via the NoMachine app, and then using the Windows laptop as both the monitor and the keyboard/mouse
Hello! Is there any way to disable dithering on iOS or iPadOS using apps like Stillcolor?
ipsumdolor Did you figure it out? Trying to figure out how to install it as well.
DisplaysShouldNotBeTVs Isn't the whole issue is about people not wanting to get back to a less convenient device? i.e. intel based, let say from 2018 macbook pro 13 inch. To me this was last known best device, I was flying with it, it was just like s smooth butter.