Bug 474826

Summary:	[Feature request] Add a time-scheduled grayscale effect similar to Android's Bedtime mode
Product:	[Plasma] kwin	Reporter:	unblended_icing552
Component:	night color	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	REPORTED ---
Severity:	wishlist	CC:	bizyaev, hedim74889, natalie_clarius, nate, nigvul, unblended_icing552, xaver.hugl
Priority:	NOR
Version First Reported In:	6.1.4
Target Milestone:	---
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description unblended_icing552 2023-09-24 01:23:25 UTC

SUMMARY

Android has a bedtime mode that toggles various features during night time, including the grayscale effect. GNOME also has a similar one as an extension. A time-scheduled grayscale effect similar to Night color would be helpful.

It could be called "Bedtime color" in align to "Night color" as a separate page under System Settings -> Display and Monitor.

ADDITIONAL INFORMATION

- How to set up Bedtime mode in Android 13 https://www.theverge.com/23427231/android-13-bedtime-mode-google-pixel-how-to
- Home of the "Bedtime Mode" 💤 GNOME Shell Extension https://github.com/ionutbortis/gnome-bedtime-mode/

Comment 1 Nate Graham 2023-09-25 17:44:01 UTC

Out of curiosity, what's the point of this? Just to make the system more annoying to use to convince you to stop using it and go to bed?

Comment 2 unblended_icing552 2023-09-26 02:15:53 UTC

At least for me, during night time the grayscale effect reduces eye strains, such that on disabling it I get a similar feeling as if Night Color was disabled. So I would say It's clearly more than just making device annoying to use (otherwise the Bedtime mode on Android would be just a utterly huge overlay that says "You need to sleep now" that pops up every single minute).

There's a semi-broken third-party effect on kde store: https://store.kde.org/p/1263836/ the grayscale part still works. You may try working on you screen with this effect enabled during night time, and then just before going to sleep, disable this effect to see the difference.

Comment 3 Zamundaaa 2024-05-28 17:40:51 UTC

*** Bug 482112 has been marked as a duplicate of this bug. ***

Comment 4 Zamundaaa 2024-05-28 17:41:35 UTC

This would probably best be a part of night color

Comment 5 player one 2024-09-05 21:25:23 UTC

I agree it's a useful feature, I was able to find a script to activate this feature, but with some limitations. And that's quite enough. Please consider adding this minor feature if possible. 

https://github.com/skbeh/kwin-grayscale-effect