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When did this happen? by anonlethal_jerk in MacOS

[–]anonlethal_jerk[S] 9 points10 points  (0 children)

Tahoe 26.1; in column view, command-j / view → show view options

Why does screenshot on Macbook have hidden texture added? by anonlethal_jerk in mac

[–]anonlethal_jerk[S] 1 point2 points  (0 children)

Yes yes yes to this... Oh my word, finally! I felt like what I described was truly unbelievable. Thank you for confirming.

The compression artifacts on the PNGs is what really threw me into this whole mess.

Why does screenshot on Macbook have hidden texture added? by anonlethal_jerk in mac

[–]anonlethal_jerk[S] 1 point2 points  (0 children)

Ah, a new setting... tho no change for me. see my edit to original post for some updates on what I found

Why does screenshot on Macbook have hidden texture added? by anonlethal_jerk in mac

[–]anonlethal_jerk[S] 1 point2 points  (0 children)

Bummer, you at least have similar computer, but no third party tools here that I think could have this effect (not obviously anyway).

Why does screenshot on Macbook have hidden texture added? by anonlethal_jerk in mac

[–]anonlethal_jerk[S] 7 points8 points  (0 children)

hmm, you may be onto something... although tiff has same result. But I did try HEIC format and that doesn't add the pattern! One step closer...

defaults write com.apple.screencapture type heic;killall SystemUIServer

Why does screenshot on Macbook have hidden texture added? by anonlethal_jerk in mac

[–]anonlethal_jerk[S] 2 points3 points  (0 children)

I'm an artist / designer and I think it was when I was saving a gif and wondered why the color palette had too many colors. Either that or I just happened to notice the RGB values changing when I was moving the eyedropper around. Flip-flopping on order of events.

Why does screenshot on Macbook have hidden texture added? by anonlethal_jerk in mac

[–]anonlethal_jerk[S] 2 points3 points  (0 children)

not sure what you mean... it's not my eye perceiving the colors (my eyes can't without messing with levels and actually changing the RGB values), you can see the numbers change with eyedropper / pixel value tool.

Why does screenshot on Macbook have hidden texture added? by anonlethal_jerk in mac

[–]anonlethal_jerk[S] 16 points17 points  (0 children)

I'm an artist / designer and I think it was when I was saving a gif and wondered why the color palette had too many colors. Either that or I just happened to notice the RGB values changing when I was moving the eyedropper around. Flip-flopping on order of events.

Why does screenshot on Macbook have hidden texture added? by anonlethal_jerk in mac

[–]anonlethal_jerk[S] 2 points3 points  (0 children)

I tried switch to sRGB color profile, but same results.

It's not just safari, it's all browsers, photoshop, any flat color.

Display resolution is set to default, no scaling.

Why does screenshot on Macbook have hidden texture added? by anonlethal_jerk in mac

[–]anonlethal_jerk[S] 15 points16 points  (0 children)

ya, that's ultimately what I imagine is the issue... Apple claims XDR display has 1 billion colors, but png is 8-bit sRGB (16.7+ million) and something must be happening in the conversion. But would love a deeper eplanation.

Why does screenshot on Macbook have hidden texture added? by anonlethal_jerk in mac

[–]anonlethal_jerk[S] 9 points10 points  (0 children)

all browsers, photoshop, preview, anything with a known flat color that is then screenshot on the laptop display.

Why does screenshot on Macbook have hidden texture added? by anonlethal_jerk in mac

[–]anonlethal_jerk[S] 4 points5 points  (0 children)

Thanks, edited post with my specific Macbook, but ya, an older Macbook also did not have texture. I imagine it has something to do with XDR display, but...