KenM76andClaude Opus 5.5 6fcfb3f98d fix(render): an isolated CMYK group inside a knockout element is erased, not painted ...

main's knockout patch (hayro (22)) draws each element of a knockout group
once in erase mode, to clear what the group drew under the element's shape.
An isolated DeviceCMYK group nested in such an element still took the CMYK
path in that pass, and drew its finished pixels with Normal blending over
what should have been cleared. draw_isolated_cmyk_group now declines while
erasing, so the group's contents are interpreted in erase mode as before.

The new test fails without the fix (the centre shows red through the
magenta: [240, 63, 168] against [245, 127, 197] for the DeviceRGB control).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SqmHYx8FiWM5PcsoiErgp9

2026-10-28 18:20:29 -04:00

..

examples

chore: resolve SonarCloud maintainability issues (#4356)

2026-10-23 23:28:18 -04:00

src

fix(render): an isolated CMYK group inside a knockout element is erased, not painted

2026-10-28 18:20:29 -04:00

tests/it

M2: a luminosity soft mask in a DeviceCMYK group converts as ISO 32000-2 10.4.2 says, so 100% K masks fully (#4423)

2026-10-25 10:02:49 -04:00

Cargo.toml

Reading colours: replace document colours for reading comfort (#897) (#1270)

2026-10-12 02:49:31 -04:00