vectorcraft/docs/type-parity.md

Type parity

Last reviewed: 2026-10-10 · Last updated: 2026-10-11 · Change: minor (Proportional Metrics in vertical type, vpal, #966; document-point character controls after object/group scaling, #1034) · Target: Adobe Illustrator 2026 (30.x)

Type is Illustrator's largest single area by use (weight 13 of 105 across "Type core" and "Type advanced" in target-app-parity.md). This checklist lists the features one by one. Status is from the code and tests (crates/text, crates/engine/src/cmd/type*.rs, textstyles.rs, crates/tools/src/text.rs) against Illustrator's public documentation; estimated unless noted.

Summary

Part	%	Remaining (h)
Type core (point, area, path type, Character/Paragraph, styles, threading, OpenType, fonts)	80%	14–19
Type advanced (CJK composition, Middle Eastern, spelling, Touch Type, Retype, variable fonts)	50%	20–28

Checklist

Feature	Status	Notes
Point, area and type-on-a-path type; vertical variants	done / partial	vertical point, area and path type have initial support
Area Type Options (rows, columns, inset, first baseline, Auto Size, Shrink Text to Fit)	done
Threaded text, Fit Headline, Text Wrap	done
Type on a Path effects and options; brackets	done	#429
Character and Paragraph panels, styles with overrides	done	mixed-value display for differing paragraphs missing
Character size and horizontal scale after object/group scaling	done	#1034: fields and setters compensate the stored affine; point size follows the transformed em-height axis, not the glyph ink bounds. Range edits, keyboard increments, leading and baseline shift use document points; rotation, reflection and shear remain editable.
Preserve font sizes while scaling a group	missing	Separate enhancement; scaling still scales text with the other artwork.
OpenType panel, Glyphs panel, alternates	done	Highlight Alternate Glyphs preference unused (#394)
Font menu: samples, live preview, filters, favourites; font matching by any name; Find Font	done	#339
Variable fonts	partial	named instances as styles; axis sliders missing
Colour fonts (OpenType SVG / COLR)	partial
Every-line and Single-line composers	done	tuned by eye, never compared side by side
Hyphenation… and Justification… options	missing
Optical Margin Alignment	missing	menu stub
Tab stops and leaders; Tabs panel	partial	Tabs panel and stops with leaders in the model (text.tabs.set); leader drawing not verified against the docs
Hidden characters (Show Hidden Characters)	done	type.hiddenCharacters
Spell check (Check Spelling, Auto Spell Check, custom dictionary)	missing	menu stubs; needs an openly licensed dictionary
Smart Punctuation, Change Case, Find & Replace	done
Touch Type tool	missing	listed in the toolbar, not implemented
Retype (identify fonts in outlines/images)	missing	Illustrator's uses a cloud model
Snap to Glyph	missing	menu stub
Middle Eastern: bidirectional layout, Paragraph Direction	done
Middle Eastern: Character Direction, digit types, kashidas, Middle Eastern composers, split caret	missing
CJK: input methods (marked text, candidate window)	done
CJK: kinsoku (Hard, Soft, None), Line-end Punctuation Half Width, tate-chu-yoko (auto)	done / partial	custom kinsoku sets, the Mojikumi Settings dialog and the other mojikumi sets missing
CJK: Proportional Metrics (palt in horizontal type, vpal in vertical type)	done	#966
CJK: ruby, manual tate-chu-yoko	missing	#633
Inline symbols in text	beyond Illustrator	not scored

Revision history

Date	Change	Summary
2026-10-11	minor	Proportional Metrics done: palt in horizontal type, vpal in vertical type (#966, #1082); ruby and manual tate-chu-yoko still missing
2026-10-10	minor	#1034: transformed character controls and regression coverage; preserving group font sizes remains a separate enhancement. Scores/hours unchanged at this rounding.
2026-10-10	major	First checklist, split out of the parity table's Type core and Type advanced rows