[bradam]

Super useful, thank you! Is there anything like that for Safari?

[devastora]

Thanks! I took a quick look and it doesn't seem like there's any plugins out there for grayscaling in Safari right now.

If you're talking about mobile safari though, you can do it on an OS level and toggle it by pressing the home button three times in a row - https://www.ped30.com/2018/01/13/apple-iphone-gray/

[beat]

I just set my iPhone up for that. I am hoping it makes a positive difference.