Dimension tool: Expand keeps a dimension as plain art after it moves

Object > Expand left a dimension's recipe on its group, so the next move
redrew the live dimension and discarded the expanded art. Expand now ends
the live link of a dimension whose art it changes, in the same undo step.
Moving or scaling the group leaves its art as it is, the art no longer
follows what it measured, and undo gives the live dimension back.

Expand Appearance, Create Outlines and Outline Stroke had the same fault
and now do the same, also when they reach only a part of a dimension. A
dimension whose art a command leaves as it was stays live. A dimension
selected with the art it measures becomes a plain group when Expand,
Expand Appearance or Outline Stroke replaces only that art.

docs/dimensions.md

@@ -36,8 +36,14 @@ changes); moved together with its art, it keeps its distance.
 
 Native `.vectorcraft` files keep the recipes and links. SVG, PDF and bitmap output contain
 ordinary paths and text, so exported dimensions look the same. Ungrouping a dimension leaves its
-paths and text as ordinary art. Pasted dimensions keep their geometry and drop their links, so
-they never bind to unrelated art in another document.
+paths and text as ordinary art. Object › Expand, Object › Expand Appearance, Type › Create Outlines
+and Object › Path › Outline Stroke turn a dimension whose art they change into a plain group of that
+art, also when they reach only a part of it: moving or scaling the group does not redraw it, it does
+not follow the art it measured, and undoing the command gives the live dimension back. A dimension
+selected with the art it measures also becomes a plain group when Object › Expand, Object › Expand
+Appearance or Object › Path › Outline Stroke replaces only that art. Pasted
+dimensions keep their geometry and drop their links, so they never bind to unrelated art in another
+document.
 
 ## Commands
 

docs/mcp.md

@@ -2972,6 +2972,8 @@ for which Object → Expand… is dimmed in the menus; `symbolArt: {fill, stroke
 holds symbol instances that `object` expands, whether only their art holds it, which Fill and Stroke reach only with
 `object` on), and `object.mesh.create` on a gradient-filled object colours the
 mesh points as the gradient paints them, with the colors Object › Expand gives them.
+`object.expand`, `effect.expandAppearance`, `type.createOutlines` and `object.path.outlineStroke` turn a dimension whose
+art they change into a plain group of that art, in the same undo step (see [dimensions.md](dimensions.md)).
 
 ```json
 {"name":"run_command","arguments":{"command":"object.expand","params":{"stroke":false,"gradient":"mesh"}}}

docs/target-app-parity.md

@@ -708,6 +708,7 @@ Moved from the ROADMAP's "Shipped so far" on 2026-10-10. Update it when a featur
   - **Delete Symbol asks first** ([Symbols panel](https://helpx.adobe.com/illustrator/desktop/manage-objects/traces-mockups-symbols/symbols-panel-options.html), [symbol libraries](https://helpx.adobe.com/illustrator/desktop/manage-objects/traces-mockups-symbols/create-or-import-symbol-libraries.html), [Alt-click Delete](https://helpx.adobe.com/illustrator/using/default-keyboard-shortcuts.html)): the Symbols panel's Delete Symbol button and menu item ask "Delete the selected symbol?" with Yes and No for a symbol no instance uses. For a symbol with placed instances they ask with Expand Instances (the instances become ordinary art), Delete Instances and Cancel; either Instances button deletes the symbol in one undo step. Alt-click on the button deletes an unused symbol without asking and still asks about one with instances. A question left open while another document became active deletes nothing. `symbol.delete` itself does not ask. Tests: `panels::symbols::tests::delete_symbol_asks_first_and_alt_click_deletes_an_unused_symbol_at_once`, `the_in_use_question_expands_or_deletes_the_instances`, `a_stale_delete_symbol_question_deletes_nothing`, `the_delete_symbol_questions_show_their_buttons`.
   - **Symbols › Select All Unused** ([Symbols panel](https://helpx.adobe.com/illustrator/desktop/manage-objects/traces-mockups-symbols/symbols-panel-options.html), #4918): the Symbols panel menu's Select All Unused shows the symbols nothing places selected (`symbol.unused`): instances in the art (opacity masks included), graph designs, pattern tiles and brush art count, and so do instances in a used symbol's art. Delete Symbol, the button or the menu item, then asks "Delete the selected symbols?" once and deletes those still unused in one undo step (`symbol.delete {names}`); Alt-click on the button deletes them without asking, and a click on a symbol picks just it again. Tests: `tests::brushsym::symbol_unused_lists_the_symbols_nothing_places_and_delete_takes_several`, `panels::symbols::tests::select_all_unused_picks_the_unused_symbols_and_delete_deletes_them`, `dialogs::symbol_delete::tests::several_symbols_get_the_plural_question`.
   - **Expand of symbol instances:** Object › Expand turns selected symbol instances (without effects, not in perspective, in groups or placed documents too) into their art as Break Link to Symbol places it, one level deep, as one undo step; the Expand dialog's Fill and Stroke reach that art (`object.expand`, `crates/engine/src/tests/expand_symbols.rs`; estimated, score unchanged).
+  - **Expand of dimensions:** Object › Expand, Expand Appearance, Create Outlines and Outline Stroke turn a dimension whose art they change into a plain group of that art, which stays as it is through later moves, scales and edits of what it measured; undo gives the live dimension back (`crates/engine/tests/it/dimensions.rs`; VectorCraft's own rule; estimated, score unchanged).
   - **Brush libraries** ([public source](https://helpx.adobe.com/illustrator/desktop/paint-and-fill/apply-and-edit-strokes/create-new-brush-libraries.html), [import](https://helpx.adobe.com/illustrator/desktop/paint-and-fill/apply-and-edit-strokes/import-brushes-from-brush-libraries-or-other-files.html), [Brushes panel](https://helpx.adobe.com/illustrator/desktop/paint-and-fill/apply-and-edit-strokes/brushes-panel-overview.html)): Window › Brush Libraries, the Brushes panel's Brush Libraries Menu and its menu's Open Brush Library open each library in a library panel of its own, as swatch, graphic style and symbol libraries do. The built-in libraries (Art Ribbons, Calligraphic Nibs, Pattern Borders, Scatter Shapes) are original brushes generated in code (`crates/engine/src/cmd/brushlib.rs`); Striped Ribbon's art is filled with the library's own pattern and Sparkles scatters the library's own symbol. A click on a brush adds it to the document's Brushes as one undo step with every resource its art uses (patterns, symbols, swatches, graphic styles, images), makes it the current brush and, with paths selected, applies it to them in the same step; a brush the document already has is not added again and a different brush of the same name comes in numbered ("Wave 2"). Shift/Cmd-clicks select brushes for Add to Brushes; a brush dragged onto a path is added and applied to it, and one dragged onto the Brushes panel is added. Save Brushes… / the Brushes panel's Save Brush Library… write the document's brushes (or the selected ones) as a `.vectorcraft` library into the `Brushes` folder next to the preferences, listed under User Defined, or to a file; Other Library… reads the brushes of any document VectorCraft opens. Thumbnails, in the library panels, the Brushes panel and Brush Options, render brush art with the patterns and symbols it uses. Copying brushed art now carries the patterns and symbols its brush's art uses too. Tests: `crates/engine/src/tests/brushlib.rs`, `crates/ui-egui/src/panels/tests_brush_libraries.rs`, `panels::brushes::tests::library_brush_previews_show_the_patterns_their_art_uses`, `canvas::tests::a_library_brush_dropped_on_a_path_is_added_and_applied_in_one_step`.
   - A canvas context menu: right-click selects the object under the pointer and lists what applies to the selection (Undo/Redo, clipboard, group, isolation, join, Remove Anchor Points when anchors are selected, masks, compound paths, guides, Transform, Arrange, Select, Export Selection), or the view commands on empty canvas.
   - A right-click over locked objects adds an Unlock submenu to the canvas context menu. The submenu lists up to 20 locked objects under the pointer, topmost first, by the name the Layers panel shows, and choosing one unlocks it (`layer.setProps`). A locked group is listed as one item. Objects on hidden, locked or template layers are not listed.