In a CMYK document, paint.setFill stores an RGB color as CMYK through
the color settings, but the other commands that take a color stored it
as RGB: text.create, text.createInPath, text.setStyle and
text.setRangeStyle colors, a shapeBuilder.merge hex fill,
paint.editGradient stops, freeform gradient points, gradient mesh
points, the Symbol Stainer's color, and swatch.new {colors},
swatch.newGroup, swatch.editGroup and swatch.edit. The Mesh tool sent
the fill as a hex value, so a CMYK fill came in as RGB.
These commands now store such a color through paint::new_color, as
paint.setFill does, and take keepModel to keep RGB (shapeBuilder.merge
inside its fill object). A color the swatch
or gradient already has keeps its model, so stops sent back with a
moved offset keep their colors (the Gradient panel's ramp and the
Gradient tool send keepModel), and a stop that names a process
swatch takes the swatch's color as it is, in paint.setFill gradients
too. Where the app copies an existing color, it keeps the color's
model: the Color panel's sliders for gradient stops and freeform
points, a swatch put on a stop or a point (the stop popover, Alt-click
in the Swatches panel, a drop on the Gradient panel's ramp), the fill
the Mesh tool gives a new point or the Symbol Stainer applies, and the
colors the Color Guide, Color Themes and Recolor Artwork save as
swatches.
swatch.new {color, mode} converted RGB into CMYK before converting it
into mode, so the New Swatch dialog in RGB mode stored #00ff00 as
R101 G176 B62 in a CMYK document. With mode, the color is now
converted once.
Docs: docs/mcp.md, docs/target-app-parity.md.
In a CMYK document, an RGB color from the Eyedropper, a hex value or
paint.setFill was stored as CMYK by the profile-free formula
(k = 1 - max(r, g, b)), not through the color settings. RGB 83/170/223
came in as C63 M24 Y0 K13. A CMYK image was sampled through the RGB its
decoder shows, so its inks came back only when the formula happened to
round-trip them.
paint_from now converts an RGB color into a CMYK document with
Cms::convert and the settings' intent, as Document Color Mode and Swatch
Options already do. This covers paint.setFill and paint.setStroke,
gradient stops, swatch.new {color} and the Eyedropper. With Generic CMYK,
83/170/223 now separates to C59 M12 Y3 K0, and #ff0000 now separates to
C0 M97 Y100 K0 instead of C0 M100 Y100 K0. keepModel: true still keeps
RGB. paint.sampleColor with a stop stores the color the same way.
The Eyedropper samples a CMYK image's ink amounts (a four-component
JPEG, or an 8- or 16-bit chunky CMYK TIFF) and returns them unchanged
(ImageBlob::sample_cmyk_object), also in an RGB document. It takes an
RGB image's sRGB pixel into the working RGB space, as the screen color
sampler does, so the picked color shows as the pixel when the working
space is not sRGB.
Docs: docs/mcp.md, docs/target-app-parity.md.
A colour linked to a global or spot swatch keeps a tint (Paint::Solid.tint, 1 by default and
left out of files at 100 %): paint.setFill/setStroke {swatch, tint} apply the swatch at that
percentage, swatch edits recolour every linked colour at its own tint, and Color::tinted
resolves it (CMYK and Gray inks scale, RGB mixes toward white). swatch.new saves a tint as a
tint swatch ("Ink 40%") linked to its base. Spot tints separate as that percentage of their
plate (Separations Preview, PDF Separation value) instead of an ink-ratio guess. Adjust Color
Balance's Global mode (tint) shifts the tints of linked colours. The Color panel shows Tint
mode (the swatch chip, its name and a T slider) for linked colours; the Swatches panel
highlights the tint swatch in use. Gradient stops get the same link and tint fields (the
swatch walks cover them), so GradientStop is no longer Copy.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A CMYK document (file.new {colorMode: "cmyk"}, Document::new_with_mode)
starts with CMYK default swatches (default_swatches(model)), and RGB
colours and gradient stops applied to it are stored as CMYK (Gray stays
Gray) unless paint.setFill/setStroke get keepModel; the Color panel keeps
the model picked on its sliders. RGB documents keep colours as given.
Harmonies and Color Guide variations keep the base colour's model, Recolor
Artwork the replaced colour's, and Edit Colors blends between models take
the document's, through a shared Color::in_model / keep_model.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
New commands: swatch.addUsedColors {selection?, global?} adds a swatch for
each colour the art uses that no solid swatch has (optionally global, the
art linking to them); swatch.unused lists the swatches nothing uses (links,
colours, gradients and patterns in art, symbols, pattern tiles and graphic
styles count); swatch.merge keeps the first colour and relinks the others'
art; swatch.ungroup and swatch.sortByKind (process, spot, gradients,
patterns). Each edit is one undo step; the panel menu items are enabled.
Document::visit_paints walks every paint of a document.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Clicking a colour group's folder selects the whole group. Show Find Field
filters the panel by name. Tiles and list rows drag to reorder swatches,
move them into or out of colour groups or reorder groups (new command
swatch.move, one undo step); swatches and Fill/Stroke proxies dropped on
art paint the object under the pointer (paint.setFill/setStroke with its
id), and a proxy dropped on the panel becomes a swatch. List rows show
kind and colour-mode icons and take double-clicks; spot colours get a dot
in the grid. The search field widget is shared with the Layers panel.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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