Color: assigned profiles follow the document in front

The profiles Edit > Assign Profile gives a document stayed the active
color settings after another document came to the front, so a new,
opened or switched-to document drew and converted its colors through the
previous document's profile, and closing the last document left it in
use.

The session now puts the front document's profiles in use (the working
spaces where it has none, or no document is open) after a new or opened
document, a tab switch, a close, File > Revert, every command including
each batch step and Undo or Redo of Assign Profile, a failed batch or
plug-in call, a script's rollback and slice boundaries, a canceled
preview, undo group or undo scope, and for each document Export All Open
and the update of placed documents work in. The active settings are
rebuilt, and the documents redrawn, only when they change.

docs/mcp.md

@@ -1434,8 +1434,10 @@ preferences (the folder the desktop app uses, so both see the same ones; `VECTOR
   start, after the profiles above are registered (#6335). Saved settings that name a profile that is no longer
   there, or a damaged file, leave the defaults (logged), and the next change writes over the file.
   `edit.assignProfile` tags the document only: colors show and convert through the profiles it assigns, and the
-  working spaces and the file stay as they are. The `workingCmyk` target of `view.proofSetup` simulates the working
-  CMYK space in such a document too.
+  working spaces and the file stay as they are. The profiles in use are those of the document in front, after
+  `file.new`, `document.open`, `document.activate`, `file.close`, `file.revert`, `edit.undo`, `edit.redo` and a
+  failed `command.batch` too; with none assigned, or no document open, the working spaces are. The `workingCmyk`
+  target of `view.proofSetup` simulates the working CMYK space in such a document too.
 
 Not remembered: the document, anything else. Nothing is read or written when
 `VECTORCRAFT_NO_PREFS` is set, and a server confined with `--automation-read-root` or

docs/target-app-parity.md

@@ -703,7 +703,7 @@ Moved from the ROADMAP's "Shipped so far" on 2026-10-10. Update it when a featur
 
 - **Document Setup modal handoff:** Document Setup → Edit Artboards applies valid settings, closes the dialog and activates the Artboard tool. Pointer-click tests cover successful handoff, invalid settings, OK, Cancel and Undo in `dialogs/document_setup.rs`.
 - **Document Setup › Color:** a Color tab shows the document color mode (RGB Color or CMYK Color), a Convert to CMYK or Convert to RGB box for a mode change (cleared: the colors keep their numbers), and the RGB and CMYK profiles assigned to the document, with a working-space entry for none. OK runs `edit.assignProfile` and then `file.documentColorMode` with the dialog's other changes in one `command.batch`, and the document's changes are one undo step. An unchanged Color tab adds no color commands, and Cancel, or OK with nothing changed, records no undo step. A Color tab field with a value of the wrong kind is an error, and the dialog stays open. The tab is VectorCraft's own layout; File › Document Color Mode and Edit › Assign Profile… stay as they are. Tests in `dialogs/document_setup.rs`.
-- **Assign Profile and the working spaces:** Edit › Assign Profile… tags the document and leaves the working spaces of Edit › Color Settings… as they are, in Color Settings, the Separations panel and the settings saved for the next start. Colors show and convert through the profiles assigned; a change in Color Settings keeps the profiles the document in front is assigned in use, and removing an assigned profile in use puts the working space back in its place. View › Proof Setup › Working CMYK simulates the working CMYK space of Color Settings in Proof Colors and Separations Preview, also in a document assigned another CMYK profile. Public references: [Changing the color profile for a document and About color working spaces](https://help.adobe.com/archive/en_US/illustrator/cs3/illustrator_cs3_help.pdf#page=150) and [Soft-proof presets](https://help.adobe.com/archive/en_US/illustrator/cs3/illustrator_cs3_help.pdf#page=134). Tests in `engine/tests/color_settings.rs`.
+- **Assign Profile and the working spaces:** Edit › Assign Profile… tags the document and leaves the working spaces of Edit › Color Settings… as they are, in Color Settings, the Separations panel and the settings saved for the next start. Colors show and convert through the profiles assigned; a change in Color Settings keeps the profiles the document in front is assigned in use, and removing an assigned profile in use puts the working space back in its place. The profiles in use follow the document in front: a new, opened or reverted document, a switch to another tab, a close, Undo and Redo of Assign Profile, a failed batch, each step of a batch, Export All Open and the update of placed documents put that document's profiles in use, and the working spaces where it is assigned none or no document is open. View › Proof Setup › Working CMYK simulates the working CMYK space of Color Settings in Proof Colors and Separations Preview, also in a document assigned another CMYK profile. Public references: [Changing the color profile for a document and About color working spaces](https://help.adobe.com/archive/en_US/illustrator/cs3/illustrator_cs3_help.pdf#page=150) and [Soft-proof presets](https://help.adobe.com/archive/en_US/illustrator/cs3/illustrator_cs3_help.pdf#page=134). Tests in `engine/tests/color_settings.rs`.
 - **New Document's More Settings and Save Preset:** More Settings opens a pop-up over New Document with only Number of Artboards, the artboard layout, Change to Right-to-Left Layout, Spacing and Columns; Done, Escape or a click outside closes it and keeps the values. Save Preset turns the top of Preset Details into a Save Document Preset heading with the preset's name, Cancel and Save, and hides the document's name, Close and Create until the preset is saved or canceled; nothing in that mode creates a document. Save Preset's default name is the first "Preset N" no saved preset has. VectorCraft's own layout. Harness tests in `dialogs/new_document.rs` cover both.
 - **New Document profiles:** each built-in category's presets start documents from that category's profile, a native document holding the starting swatches, graphic styles, brushes, symbols and other assets, the ruler and Document Setup options and the print settings ([Create a custom new document profile](https://helpx.adobe.com/illustrator/desktop/add-and-import-files/start-a-new-file/create-a-custom-new-document-profile.html)). New Document's Manage Profiles pop-up opens a profile to edit and resets one to the shipped profile (`file.newProfiles`, `file.newProfiles.edit`, `file.newProfiles.reset`; `file.new {profile}`). The profiles live in VectorCraft's own `New Document Profiles` folder next to the preferences; a profile that cannot be read or is larger than 64 MiB leaves the defaults and is reported. Tests: `tests::newdoc::an_edited_profile_starts_the_documents_of_its_category`, `the_profile_follows_the_preset_access_and_reset`, `a_damaged_or_oversized_profile_leaves_the_defaults_and_is_reported`, `profile_names_are_checked_and_editing_needs_the_folder`, `dialogs::new_document::tests::manage_profiles_edits_and_resets_the_profiles`.
 - **Control bar with the Artboard tool:** while the Artboard tool is in use, the Control bar shows the active artboard's controls in place of the object controls: Preset, Portrait and Landscape, New Artboard, Delete Artboard, the Name field, Artboard Options, Rearrange All Artboards, the Transform link, Move and Scale Artwork with Artboard and, while the bar has room, the reference point with X and Y, and W and H with the Constrain Width and Height Proportions link. Each runs the command its Properties or Transform panel counterpart runs (`artboard.setProps`, `artboard.new`, `artboard.delete`, `tool.options {tool: "artboard"}`), and the reference point is the one the Transform panel uses. In an 800-point window the controls up to the Transform link fit, Move and Scale Artwork with Artboard show as their boxes alone with their names in tooltips, and the link opens the Transform panel with the artboard's position and size. Pointer and key tests in `panels/artboards.rs` cover the controls, W about the reference point, the orientation and the name. Public reference: [Using multiple artboards](https://web.archive.org/web/20210925094818/https://helpx.adobe.com/illustrator/using/using-multiple-artboards.html) (archived copy).