# Mac Question **URL:** \ **Category:** Factual Questions\ **Created:** [April 29, 2020, 10:06pm UTC](https://boards.straightdope.com/t/mac-question/852850 "2020-04-29T22:06:11Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Sunny\_Daze](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sunny_daze/32/438_2.png) [@Sunny\_Daze](https://boards.straightdope.com/u/Sunny_Daze)\ **Post date:** [April 29, 2020, 10:06pm UTC](https://boards.straightdope.com/t/mac-question/852850/1 "2020-04-29T22:06:11Z")
I would like to set my display to have a green aspect. If you think about the way you can make the display “warmer” at night, to reduce sleep disturbance, I’m looking for a way to do that but with green tones, instead of amber ones. Any ideas? ---
**Author:** ![Vesicant](https://avatars.discourse-cdn.com/v4/letter/v/43a26b/32.png) [@Vesicant](https://boards.straightdope.com/u/Vesicant)\ **Post date:** [April 29, 2020, 11:05pm UTC](https://boards.straightdope.com/t/mac-question/852850/2 "2020-04-29T23:05:01Z")
Open the Display Calibrator Assistant and change the Target White Point. ---
**Author:** ![Sunny\_Daze](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sunny_daze/32/438_2.png) [@Sunny\_Daze](https://boards.straightdope.com/u/Sunny_Daze)\ **Post date:** [May 4, 2020, 10:03pm UTC](https://boards.straightdope.com/t/mac-question/852850/3 "2020-05-04T22:03:36Z")
Can you tell me which version of the OS that is? I’m behind on updates and may need to catch up in order to implement this. Thank you. ---
**Author:** ![AHunter3](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/ahunter3/32/368_2.png) [@AHunter3](https://boards.straightdope.com/u/AHunter3)\ **Post date:** [May 4, 2020, 10:10pm UTC](https://boards.straightdope.com/t/mac-question/852850/4 "2020-05-04T22:10:54Z")
I don’t know of the Display Calibrator Assistant (which may be a 3rd party addition) but if you go to System Preferences/Display and go to the Color tab you can nake a new profile and futz with the calibration settings. ---
**Author:** ![Sunny\_Daze](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sunny_daze/32/438_2.png) [@Sunny\_Daze](https://boards.straightdope.com/u/Sunny_Daze)\ **Post date:** [May 4, 2020, 10:16pm UTC](https://boards.straightdope.com/t/mac-question/852850/5 "2020-05-04T22:16:00Z")
> [@AHunter3](#): > > I don’t know of the Display Calibrator Assistant (which may be a 3rd party addition) but if you go to System Preferences/Display and go to the Color tab you can nake a new profile and futz with the calibration settings. I’ve done some of that and I’m not getting very far. I’ll take another look. Thank you. ---
**Author:** ![Sunny\_Daze](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sunny_daze/32/438_2.png) [@Sunny\_Daze](https://boards.straightdope.com/u/Sunny_Daze)\ **Post date:** [May 4, 2020, 10:24pm UTC](https://boards.straightdope.com/t/mac-question/852850/6 "2020-05-04T22:24:09Z")
I found the Calibrator assistant and the Target White Point option. (Huzzah) In the color tab, if you select Calibrate, you’ll get the assistant. Unfortunately, the adjustments seem to be along the cool (blueish) to warm (amber) spectrum. A color chart is visible, but I don’t see a way to move the target white point in the direction of green. ---
**Author:** ![Pork\_Rind](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/pork_rind/32/111_2.png) [@Pork\_Rind](https://boards.straightdope.com/u/Pork_Rind)\ **Post date:** [May 4, 2020, 11:14pm UTC](https://boards.straightdope.com/t/mac-question/852850/7 "2020-05-04T23:14:28Z")
Are you using an external display? Those almost always have a custom RGB setup where you can move the R and B sliders down while raising the G slider. ---
**Author:** ![peccavi](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/peccavi/32/388_2.png) [@peccavi](https://boards.straightdope.com/u/peccavi)\ **Post date:** [May 4, 2020, 11:45pm UTC](https://boards.straightdope.com/t/mac-question/852850/8 "2020-05-04T23:45:24Z")
Why wouldn’t you just use the built-in [Night Shift](https://support.apple.com/guide/mac-help/use-night-shift-mchl97bc676d/mac)? ---
**Author:** ![sweepkick](https://avatars.discourse-cdn.com/v4/letter/s/87869e/32.png) [@sweepkick](https://boards.straightdope.com/u/sweepkick)\ **Post date:** [May 5, 2020, 4:26am UTC](https://boards.straightdope.com/t/mac-question/852850/9 "2020-05-05T04:26:48Z")
> [@Sunny\_Daze](#): > > I would like to set my display to have a green aspect. If you think about the way you can make the display “warmer” at night, to reduce sleep disturbance, I’m looking for a way to do that but with green tones, instead of amber ones. Any ideas? I use this app, which has several color filters, including green options: > **[‎Screen Colors Filter — Color Tint & Dim HEV Block](https://apps.apple.com/us/app/screen-colors-filter-color-tint-dim-hev-block/id1177401419?mt=12)** > > ‎Screen Colors Filter — blocks high-energy visible light (HEV light) in the violet/blue band > from 400 to 500 nm in the visible spectrum & designed for those who works a lot at night. > > When you're in a low-light environment or reading long book... It only has four green pre-sets but you can tailor them a bit using the dim slider. HTH