.ai import: type filled or stroked with a pattern keeps its pattern (#6856)

In the text document of a .ai's editing copy, a character's fill (key
53) or stroke (key 54) is a paint with a colour under key 0 and, under
key 5, the name of an art style of the editing data. For a pattern
swatch, key 0 is black and the pattern is only in that style: a style
of one paint (/SimpleStyle) that paints with `(name) ... [matrix] p`.
The reader took key 0 alone, so type painted with a pattern came in
black.

The art style reader now keeps the pattern of a style that is one
paint, and the import places it as a path's pattern fill would be (its
matrix in art space; the files' own pages tile such type with it), by
the style's name. A run whose fill or stroke is on and names such a
style takes the pattern, in the type's text space, so its tiles stay
where the document has them. A pattern the file doesn't define or can't
place, a key 5 that isn't a string, and a style of any other paint keep
the colour as before.

A style that also has filters gives no pattern for type, and a pattern that
can't be placed in the type's text space keeps the colour. A .ai saved
again writes such type as outlines with a warning, as it already does for
any type with pattern paint (#5965).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/file-format-parity.md

@@ -1,6 +1,6 @@
 # File format parity
 
-> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-11 · **Change:** minor (`.ai` and EPS import, and what every export and `.ai` save draw: type's strokes in an envelope paint at their own weight along its bent outlines, Distort Appearance on or off, #6644; `.ai` and EPS import: centred and right-aligned lines of tracked type are aligned without the tracking after their last character, as the file's page aligns them, #6610; `.ai` and EPS import: an envelope saved in Edit Contents whose mesh lies away from its drawn art by a move opens live on that art, #6570; `.ai` save and open: layer colour presets Yellow, Magenta and Cyan keep their colour, as the `Lb` colour index now follows the file's numbering, #6502; `.ai` save: stroked type keeps its stroke's cap, join and miter limit in the text document, #6472; `.ai` and EPS import, PDF import: tracking and manual kerning in horizontally scaled type take the Horizontal Scale, as the file's page spaces such type; `.ai` and EPS import: stroked type in an envelope maps from its glyphs grown by half its stroke, #3179; `.ai` and EPS import: warps of type open as mesh envelopes on their saved grid, #3179; `.ai` and EPS import: stroked type keeps its stroke's cap, join and miter limit from the text document, #6472; `.ai` save: type in a variable font's named instance names its design-space setting, #6388; `.ai` and EPS import: envelopes of type open live where they draw as their drawn art and the layers with them draw as the page, #3179; `.ai` and EPS import: a note for type in an envelope, #3179; `.ai` and EPS import: the live envelope and warped type check sees white art; PDF import: DeviceN images of one ink or of process plates keep their inks, #6348; `.ai` import: images in a spot ink's Separation space keep their ink, #6350; PDF import: Separation images keep their ink, #6314; PDF editable import preserves authored ActualText once, including empty/nested spans and authored ordering (#6165); cross-line/style layout remains approximate; scores and estimates unchanged; PDF marked-text export (#6309): compatible glyphs stay on one layout line with per-glyph offsets; scores and estimates unchanged; PDF import: image masks open colorized by the color they are painted in, #6313; EPS and `.ai` editing data: a ligature the page names by a private-use glyph matches its text object; EPS import: CIDFonts only named, over a Unicode CMap, set as live type; EPS import: CMap mappings to base-font codes and glyph names; EPS import: CID-keyed fonts in FontSets (CFF) draw their glyphs; EPS import: `kshow` procedures kern live type; EPS import: embedded Type 1 fonts' glyphs and widths; EPS import: CID-keyed fonts draw their glyphs; EPS import: Type 42 fonts' characters and widths from the font they carry, show operators' spacing kept as tracking; EPS import: an image decoder's own buffers stop counting against the memory budget once it is decoded; EPS import: sampled functions interpolate between their samples; `.ai` and EPS type from the text document keeps its tab stops; it keeps auto leading and hyphenation options, and may show more of the file's last lines in an area frame; `.ai` and EPS import: Art brushes in the older form of their objects come into the Brushes panel; EPS import: gradients drawn as abutting strips come in as one gradient, without seams; EPS import: composite fonts draw their Type 42 glyphs; SVG import: filter and mask regions clip, #5876, #5875; SVG import: Gaussian blurs keep `color-interpolation-filters`, #5877; PDF and `.ai` export: objects' URLs as links, #5785; SVG import: `color-interpolation="linearRGB"` gradients, #5878; `.ai` import: paths with a Calligraphic brush open brushed, #372) · **Target:** Adobe Illustrator 2026 (30.x)
+> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-12 · **Change:** minor (`.ai` and EPS import: type filled or stroked with a pattern swatch keeps its pattern, from the art style its text document paint names, #6856; `.ai` and EPS import, and what every export and `.ai` save draw: type's strokes in an envelope paint at their own weight along its bent outlines, Distort Appearance on or off, #6644; `.ai` and EPS import: centred and right-aligned lines of tracked type are aligned without the tracking after their last character, as the file's page aligns them, #6610; `.ai` and EPS import: an envelope saved in Edit Contents whose mesh lies away from its drawn art by a move opens live on that art, #6570; `.ai` save and open: layer colour presets Yellow, Magenta and Cyan keep their colour, as the `Lb` colour index now follows the file's numbering, #6502; `.ai` save: stroked type keeps its stroke's cap, join and miter limit in the text document, #6472; `.ai` and EPS import, PDF import: tracking and manual kerning in horizontally scaled type take the Horizontal Scale, as the file's page spaces such type; `.ai` and EPS import: stroked type in an envelope maps from its glyphs grown by half its stroke, #3179; `.ai` and EPS import: warps of type open as mesh envelopes on their saved grid, #3179; `.ai` and EPS import: stroked type keeps its stroke's cap, join and miter limit from the text document, #6472; `.ai` save: type in a variable font's named instance names its design-space setting, #6388; `.ai` and EPS import: envelopes of type open live where they draw as their drawn art and the layers with them draw as the page, #3179; `.ai` and EPS import: a note for type in an envelope, #3179; `.ai` and EPS import: the live envelope and warped type check sees white art; PDF import: DeviceN images of one ink or of process plates keep their inks, #6348; `.ai` import: images in a spot ink's Separation space keep their ink, #6350; PDF import: Separation images keep their ink, #6314; PDF editable import preserves authored ActualText once, including empty/nested spans and authored ordering (#6165); cross-line/style layout remains approximate; scores and estimates unchanged; PDF marked-text export (#6309): compatible glyphs stay on one layout line with per-glyph offsets; scores and estimates unchanged; PDF import: image masks open colorized by the color they are painted in, #6313; EPS and `.ai` editing data: a ligature the page names by a private-use glyph matches its text object; EPS import: CIDFonts only named, over a Unicode CMap, set as live type; EPS import: CMap mappings to base-font codes and glyph names; EPS import: CID-keyed fonts in FontSets (CFF) draw their glyphs; EPS import: `kshow` procedures kern live type; EPS import: embedded Type 1 fonts' glyphs and widths; EPS import: CID-keyed fonts draw their glyphs; EPS import: Type 42 fonts' characters and widths from the font they carry, show operators' spacing kept as tracking; EPS import: an image decoder's own buffers stop counting against the memory budget once it is decoded; EPS import: sampled functions interpolate between their samples; `.ai` and EPS type from the text document keeps its tab stops; it keeps auto leading and hyphenation options, and may show more of the file's last lines in an area frame; `.ai` and EPS import: Art brushes in the older form of their objects come into the Brushes panel; EPS import: gradients drawn as abutting strips come in as one gradient, without seams; EPS import: composite fonts draw their Type 42 glyphs; SVG import: filter and mask regions clip, #5876, #5875; SVG import: Gaussian blurs keep `color-interpolation-filters`, #5877; PDF and `.ai` export: objects' URLs as links, #5785; SVG import: `color-interpolation="linearRGB"` gradients, #5878; `.ai` import: paths with a Calligraphic brush open brushed, #372) · **Target:** Adobe Illustrator 2026 (30.x)
 
 Every format Illustrator opens, places, saves or exports, against VectorCraft's format table (`FORMATS`,
 `OPEN_EXTS`, `PLACE_EXTS` in `crates/engine/src/cmd/fileio/formats.rs`). Illustrator's list comes from its public
@@ -54,7 +54,10 @@ private editing data. VectorCraft:
   own paints with the paint before the mask's dictionary, as the writer leaves out paint that doesn't change.
   Type from the text document keeps auto leading as auto, each line taking the paragraph's share
   (Auto Leading) of the largest type on it ([Line and character spacing](https://helpx.adobe.com/illustrator/using/line-character-spacing.html)),
-  and the paragraph's hyphenation options and tab stops. Stroked type keeps its stroke's cap, join and miter limit. Area type of one
+  and the paragraph's hyphenation options and tab stops. Stroked type keeps its stroke's cap, join and miter limit. Type filled or
+  stroked with a pattern keeps its pattern, placed in the document as a path's pattern fill would be: a character's paint names
+  an art style of one paint, and the pattern is in that style (its colour in the text document is black). A pattern the file
+  doesn't define, or a style that isn't a pattern, keeps the colour as before. Area type of one
   frame whose last lines the file sets but which don't fit here (the fallback font, or a descent
   past the frame's bottom) may get a frame taller from its bottom, by its lines' deepest descent plus 0.05 pt and only when that shows more of those lines, with a warning when it does.
   RGB in the PDF page's `ICCBased` spaces keeps the file's numbers in a `.ai` (the `uncalibrated_rgb`
@@ -340,6 +343,7 @@ Stop opacity on translated artboards remains outside this regression coverage.
 
 | Date | Change | Summary |
 |---|---|---|
+| 2026-11-12 | minor | `.ai` and EPS import: type filled or stroked with a pattern swatch keeps its pattern. In the text document a character's fill or stroke is a colour (key 0) and the name of an art style (key 5). In users' files (used locally, never committed) that style is one paint (`/SimpleStyle`): a colour, the one key 0 already has, or a pattern, `(name) … [matrix] p`, whose key 0 is black. Such type came in black, or stroked in black. It now takes the pattern, its matrix in art space as a path's pattern fill has it (the files' PDF parts tile such type with that matrix), placed in the type's text space so that it stays where the document has it. A pattern the file doesn't define or can't place, and a style of any other paint, keep the colour as before. A `.ai` saved again writes such type as its outlines, as it writes all type with pattern paint, with that warning. On 224 of our own files: envelopes of type that open live go from 154 in 45 files to 157 in 46, and no file loses one; no file changes whether it opens from its layers or its PDF part; renders at 40 ppi change in 10 of the 13 files with patterned type, 8 closer to the file's own page (one by under 0.01 points, in a file whose render differs from its page almost everywhere either way), 1 further by 0.03 points of its pixels (an envelope of type there now opens live in place of its drawn art), 1 not compared (its page renders at another size); notes change in 3 files: one loses its type note, one loses the note for type in an envelope and, now compared with its page, gains its type notes, and one that opens from its PDF part names a smaller difference. Tests `ate::tests::a_run_painted_by_a_patterns_art_style_takes_the_pattern`, `a_runs_pattern_stays_where_the_document_has_it`, `tests_native::type_painted_with_a_pattern_takes_it_from_the_art_style_its_paint_names`. Scores and estimates unchanged. (#6856) |
 | 2026-11-11 | minor | `.ai` and EPS import, and what the canvas, every export and `.ai` save draw: type's strokes in an envelope (its characters' and those on its own appearance) paint along the bent glyph outlines at their own weight, Distort Appearance on or off, as the drawn art of users' `.ai` files strokes them (used locally, never committed: there the drawn art keeps those strokes as stroked paths at the type's own weights, and its ring is as wide wherever the grid squeezes or stretches the type). With Distort Appearance, VectorCraft bent them with the art, as their filled outlines, so an envelope of stroked type in a squeezed or stretched grid didn't draw as its drawn art and kept it. The same holds in an envelope inside an envelope. Paths' strokes, geometry effects, opacity masks, linear gradients and pattern fills bend as before. On 224 of our own files: envelopes of type that open live go from 135 in 37 files to 154 in 45, and no file loses one; no file changes whether it opens from its layers or its PDF part; renders at 40 ppi change in 31 files, by at most 2.3% of their pixels, 19 closer to the file's own page and 12 further, 11 of those where an envelope of type now opens live in place of its drawn art (the page's own art) and one by 4 pixels. Tests `envelope_distort::type_strokes_paint_at_their_own_weight_in_a_squeezed_envelope`, `a_stroke_on_types_appearance_paints_at_its_own_weight_in_a_squeezed_envelope`, `a_paths_stroke_still_bends_in_a_squeezed_envelope`, `tests_native::an_envelope_of_stroked_type_whose_drawn_art_strokes_the_bent_outlines_at_the_weight_opens_live` (#6644) |
 | 2026-11-11 | minor | `.ai` and EPS import, and what SVG export, PDF export and `.ai` save draw: centred and right-aligned lines of tracked type are aligned without the tracking after their last character, as a `.ai`'s own page aligns them (see type-parity.md, same date). In 224 users' files (used locally, never committed), 63 render differently: 54 closer to the page, 7 further, 1 alike and 1 that couldn't be compared; among them the median share of pixels that differ from the page went from 4.4% to 1.0%. Of the 7: one now opens from its layers instead of its PDF part (they differ from the page by less than the import's 5% limit now; type note 3.8%); one has a centred line whose spacing inside it differs from the page's, which now centres on the page's line while half of it no longer lies on the page's glyphs (type note 1.4% to 2.4%); five moved by less than 0.05 of a percentage point, in type the page draws in other glyphs. The type note shows a smaller share in 6 files; 2 more envelopes of type open live (129 to 131, none fewer in any file). SVG import: `text-anchor` aligns a line's advance, which ends after its last character's letter spacing, so a centred or right-aligned letter-spaced line moves back by half or all of it and stays where a reader draws it; SVG export, which anchors lines so, reads back unchanged (test `import_text::anchored_letter_spaced_lines_stay_where_a_reader_draws_them`). Affinity import: centred or right-aligned tracked artistic text moves by half or all of its last character's tracking, as layout now aligns it (unverified against Affinity, whose files we don't have), and differently aligned paragraphs line up by the widths layout aligns them by (`affinity_features::artistic_text_aligns_its_lines_within_the_longest`). Scores and estimates unchanged. (#6610) |
 | 2026-11-11 | minor | `.ai` and EPS import: while an envelope's contents are edited, the editing data keeps its mesh (a mesh's, a top object's or a warp's grid) in its dictionary, and in some files that mesh lies away from the drawn art by a move, the contents with the drawn art, as if the mesh hadn't followed the envelope when it moved: the envelope drew its contents elsewhere and kept its drawn art. A mesh or top object saved in Edit Contents (or a warp of type tried on its saved grid) whose mesh draws the contents as large as the drawn art, within half a point over width and height together, but further from it than that, is now tried again, after every other way and with one more of the import's checks, with its mesh moved by as far as the drawn art's box lies from the box of what it draws; it opens live there where it then draws as the drawn art. In users' files, used locally and never committed, only envelopes saved in Edit Contents draw elsewhere than their drawn art, and nothing in their dictionaries says by how much they moved. Tests `ai::tests::an_envelope_in_edit_contents_whose_mesh_stayed_behind_opens_live_on_its_drawn_art`, `tests_native::a_warp_of_type_in_edit_contents_whose_grid_stayed_behind_opens_on_its_drawn_art` (#6570) |