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* cms: read named-colour (ncl2) profiles and convert their colours A named-colour profile's ncl2 tag (ICC.1:2022 §10.17) was never read, so a spot-colour library could not be used. Profile::named_colors() returns its entries: the name joined from prefix, root and suffix, the PCS value and any device coordinates. NamedColors::to_device(name, dst) converts one into a destination profile, relative colorimetric, through the Lab identity profile. Lab in ncl2 uses the legacy 16-bit encoding (0xFF00 = L* 100) in every profile version; reading it as v4 puts L* about 0.4 low. Counts are checked against the tag size before allocating, and more than 15 device coordinates is refused. Adapted from icccer's named_color module (MIT, same author), rewritten onto craft-cms types. Refs #746 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * cms: cap the ncl2 tag-table walk; doc fixes Cap the tag count at 1024, as Profile::parse does, so the table offsets cannot overflow on a 32-bit target. Correct the named_colors doc and add one for is_empty. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * cms: README notes named-colour tables are readable Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> --------- Co-authored-by: KenM76 <KenM76> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>