Since updating my app for iOS 26, all of my snapshot tests now render as 16-bit P3 color PNG images. When comparing these images in Fork, the checkerboard-shaped "Highlight pixels" button is grayed out. The images are in LFS, if that matters, but they diffed fine when they were 8-bit sRGB PNGs. Kaleidoscope is able to pixel-diff these images, and diff an 8-bit against a 16-bit, but it's cumbersome to switch to a different app.
Attached are examples of before/after P3 images where I encountered this problem: Archive.zip
Since updating my app for iOS 26, all of my snapshot tests now render as 16-bit P3 color PNG images. When comparing these images in Fork, the checkerboard-shaped "Highlight pixels" button is grayed out. The images are in LFS, if that matters, but they diffed fine when they were 8-bit sRGB PNGs. Kaleidoscope is able to pixel-diff these images, and diff an 8-bit against a 16-bit, but it's cumbersome to switch to a different app.
Attached are examples of before/after P3 images where I encountered this problem: Archive.zip