An untagged document (a new one in the default working space, or a file
opened without a profile) is treated as sRGB (sGray for grayscale), but
Export As, Save As and Save for Web wrote no profile for it, so viewers
had to guess. Photoshop embeds sRGB IEC61966-2.1 for both a new and a
"Don't Color Manage" document when the profile is embedded.
A flat export to a format that carries profiles now tags an untagged
image with the profile assumed for its mode; the codec still leaves it
out when embedding is off, and formats without profiles are unchanged.
Save for Web does the same when Embed Color Profile is on.
Tests that relied on untagged exports carrying no profile (an EXIF
ColorSpace round trip, the Export As proxy-estimate premise, an Affinity
preview fixture, a WebP lossy check) now say so explicitly.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Every tests/*.rs file is its own executable that links the whole crate
graph. Move each crate's test files into tests/it/ as modules of one
tests/it/main.rs; helper modules under tests/common move with them.
These keep their own binary (own process):
- engine panic_hunt: a process-wide panic hook counts every panic.
- engine text_gamma: changes the process-wide text gamma.
- engine smart_filter_stages, mask_cache_purge: assert on global caches.
- codecs pnm_peak_memory: reads the process's peak RSS.
- photocraft mac_menu_appkit: harness = false.
