A .ai or EPS opened from its editing data lost the opacity and blend
mode of its text objects. text_slot made the slot without the graphics
state's opacity and blend mode, which paths, meshes and images take, so
an Xy before a text object was lost. An Xy after it reached the slot,
but fill_slots then put type made from the text document in the slot's
place with only its visibility and name, and style_marker dropped the
transparency that a text object with an appearance carries on its look.
text_slot now takes the state's opacity and blend mode. fill_slots
gives made type the slot's opacity, blend mode, isolation and knockout.
The page's type gets them too, in place of its own transparency when
that is none, the slot's, or the slot's combined with that of the
objects around it; otherwise the page's type and the strokes around it
keep their own (a fill's, for example). When the type has transparency
and comes with other art (the strokes the page draws around it, or page
type that goes with it), a group of them takes the transparency. A text
object with an appearance takes the transparency from its look; where
the look draws more than the type and has transparency, the look and
the type go into a group that has it, and that group is not taken as
the look of a later object. The import fuzz's .ai tokens now include a
commented text object, 1 /FreeUndo , and a group's state marker
(6 () XW).
Docs: docs/mcp.md, docs/target-app-parity.md.
Shift pressed while dragging a segment had no effect on the curve:
Direct Selection's curved-segment and spine-segment drags, the Anchor
Point tool and the Pen with Alt sent the pointer offset alone, and the
segment bent freely. The reference app keeps the handles in the
perpendicular direction and of equal length while Shift is held.
path.reshapeSegment and object.blend.spine.reshapeSegment take
perpendicular (default false, which keeps today's behavior). With it,
both of the segment's handles stand at right angles to the line between
its anchors, on the same side and at the same length, and the point at
t lies as far from that line as the moved point does. A smooth anchor
at either end stays smooth, as it does in a drag without perpendicular,
and a segment whose anchors coincide bends as it does without
perpendicular. With Direct Selection, Shift pressed once a curved
segment's drag has started sends perpendicular; Shift held at the press
still toggles the path's selection, as before. Direct Selection's
spine-segment drag and the Anchor Point tool's segment drag send Shift
as perpendicular too, so the Pen with Alt does as well. A straight
segment dragged with Direct Selection already moves at 45° steps with
Shift.
Docs: docs/mcp.md, docs/target-app-parity.md.
The PostScript interpreter that reads EPS and PostScript files had no
CCITTFaxDecode filter. Reading a file whose image data went through it
stopped at an error naming the filter, and the file opened from a
fallback, such as its preview or the art drawn before the image, or
did not open.
CCITTFaxDecode now decodes CCITT Group 4 (ITU-T T.6) and Group 3
one-dimensional and mixed (ITU-T T.4) data to rows of 1-bit samples.
It reads K, Columns, Rows, EndOfBlock, EndOfLine, EncodedByteAlign and
BlackIs1 (PLRM 3rd ed., §3.13; ISO 32000-2, §7.4.6). With EndOfBlock
the data ends at its EOFB or RTC regardless of Rows, and the RTC of
mixed Group 3 data, six EOLs each with a tag bit, is found by the
filter. Damaged data keeps the rows decoded before it, and damage in
the first row is an ioerror. Columns outside 1 to 65,535 and Rows
below 0 are a rangecheck, and data that would decode to more than
256 MiB is refused. hayro-ccitt 0.3.0, already in Cargo.lock through
hayro-syntax, becomes a dependency of vectorcraft-eps.
The tests encode their images in the test, with the fax crate's
Group 4 encoder and T.4 run codes (a dev-dependency, already in
Cargo.lock through tiff), and fail without the change. The import fuzz
tests read a Group 4 and a Group 3 image coded by hand from the T.4
and T.6 tables, read the same file with random damage, and add the
filter and its parameters to the hostile programs.
Docs: docs/file-format-parity.md, docs/target-app-parity.md.
The EPS reader read PostScript by any name, but the Open and Place
dialogs hid .ps and .epsf files, and a .ps or .epsf file whose header
is only %! could not be opened or placed ("not a format VectorCraft
reads"). The reference app lists .eps, .epsf and .ps under Open and
Place.
- A read-only PostScript format (ps) joins the format table. A .ps
file opens and places through the EPS reader and reports the
ps format. document.export does not write .ps; file.print does.
- .epsf is an EPS extension.
- OPEN_EXTS and PLACE_EXTS list epsf and ps, so the dialogs, the CLI
help and the MCP open_file description list them.
UNASSOCIATED_EXTS lists them too: the macOS bundle declares neither.
- A .ps or .epsf file whose header is only %! now pastes as EPS when
copied in a file manager, as one with a %!PS header already did, and
clipboard.importEps reads PostScript whose header is only %!, which
it rejected before.
Docs: docs/mcp.md, docs/file-format-parity.md (.ps row),
docs/target-app-parity.md.
Native files remember the grid like the saved view, so reopening restores it.
Toggling it is still view state: no undo step, document not marked modified.
Fixes#1968
With several artboards selected, the Artboards panel menu's Duplicate
Artboards copied only the active one, and Copy and Cut with the
Artboard tool took only the tool's active artboard.
artboard.duplicate, artboard.copy and artboard.cut now take `indices`,
and without `index` or `indices` they act on the artboards the
Artboard tool has selected. Duplicate Artboards passes the selected
artboards and selects the copies. Duplicate and Cut are one undo step
each, and Paste adds every copied artboard back, with its art, in one
undo step. The copies keep their places relative to each other,
together right of the last artboard. A cut fails when it names every
artboard.
Docs: docs/mcp.md, docs/target-app-parity.md.
file.saveAsTemplate kept a name whose extension named another format
and wrote the template into it: {path: "card.png"} wrote .vctemplate
JSON to card.png, and card.pdf typed in the desktop save panel got it
too. file.saveAs {format: "ait"} answered that document.export writes
other formats, but document.export does not write .ait either.
file.saveAsTemplate now replaces another format's extension (card.png
is saved as card.vctemplate, or card.ait for format: "ait") and adds
the extension to a name whose extension names no format. The desktop
panel adds the template's extension to any name that does not end in
a template extension (card.pdf.vctemplate), as Save As adds its own.
Save and Save As still refuse ait, and the error now names
file.saveAsTemplate.
Docs: docs/mcp.md, docs/target-app-parity.md.
effect.apply and effect.setParams stored any string as the color of
Drop Shadow, Inner Glow, Outer Glow and Shift to Color. When the
effect could not read it, it drew its default color with no message,
so a typo such as #ff00 in the Drop Shadow dialog turned the shadow
black.
The commands now refuse such a color before they edit, with
"`color` must be a #rrggbb color", and the document and its undo
history stay as they were. Hex colors, the five named colors,
[r, g, b] and color objects still pass. The check runs in the
commands, so the app, command.batch steps and replayed journals get
it too. The effect dialog's OK shows the error and keeps the dialog
open, with Preview on or off. Saved documents open as before.
Docs: docs/mcp.md (effect params).
A raster export warns that "an image couldn't be decoded and is
missing from the picture" when the count of failed decodes rose while
it drew. A pattern fill draws from a tile kept for each thread, and a
tile taken from that cache draws none of its art. Only the export that
made the tile counted the image, and later exports of the document gave
no warning although their pictures lacked the image too. The raster
kept for a blurred or filtered object had the same fault: the renderer
that draws pattern tiles keeps those rasters from one tile to the next,
so a tile drawn again took such an object from its raster and counted
nothing.
A kept tile and a kept effect raster now store how many decodes failed
on their thread while they were made, and each draw from them adds that
number to the count again.
A style captured from text left out the attributes that the text's
JSON skips at their defaults, such as the Hyphenation options, the
Composer, tab stops, Auto kerning and the character alignment.
Redefining a paragraph or character style from text set
back to the defaults therefore did not reach the text using the
style: a paragraph that had the old Hyphen Limit or Single-line
Composer from the style kept it. setAttrs dropped a default value it
was given in the same way.
New and Redefine now capture every attribute of the selected text,
and charStyle.setAttrs and paraStyle.setAttrs keep a default value.
When a style changes, text whose value equals the old definition's
takes the new value, a default included. Local overrides on text that
uses a style other than the Normal styles stay, and an attribute that
setAttrs leaves out still leaves the text's value alone. The Character
Styles and Paragraph Styles panels compare the attributes a style holds
with the same attributes of the selection. A paragraph style made from
type with Auto alignment no longer shows "+" on that type.
Two existing behaviors change. Applying a style made with New or
Redefine from text, without Clear Overrides, now also sets the
attributes that text had at their defaults, such as Auto kerning, no
OpenType features, the Every-line Composer, no tab stops and the
default Hyphenation options. Redefining [Normal Paragraph Style] or
[Normal Character Style] from text gives every paragraph or run that
uses it those attributes too, so local values of them on that text are
reset.
Docs: docs/target-app-parity.md.
Batch over data sets names each output file after the document and the
data set, as the reference app's File + Data Set Name option does. It
joined that name onto the destination folder as it was, and a data set
name can hold any character. A data set named a/b failed to save, and
one named a/../../x wrote its file outside the destination folder. On
Windows, one named c\d also failed to save, and one named e:f left an
empty file.
The data set's name now goes through file_part, which Export for
Screens uses for its file name prefix and a format row's suffix, so
output file names have - in place of /, \ and : from a data set's name.
When two data sets then give the same name, compared without case, the
later ones get -2, -3 and so on, as artboard file names do, through a
distinct_names helper split out of unique_file_names. This covers the
folder destination and Override Save/Export.
Docs: docs/mcp.md, docs/target-app-parity.md.
An object whose art style had a Drop Shadow with Darkness (a csrc
other than 0 in the shadow filter's dictionary) came in as its drawn
look, with a warning that its appearance isn't editable yet. With a
Color shadow instead, the same object comes in as itself with its
fill, stroke and shadow.
The reader now reads such a shadow as Drop Shadow with shade
"darkness" and darkness set to the filter's dark value, a percentage
kept within 0 to 100, or 100 when the value is missing or not a
finite number. The shadow's other keys are read as for a shadow with Color,
and the object comes in as itself wherever it would with a shadow with
Color. A shadow with Color comes in with the same params as before.
The import fuzz's .ai tokens now include csrc and dark.
Docs: docs/target-app-parity.md.
TIFFs that store each channel as its own plane (PlanarConfiguration 2)
did not open, place or relink when they were CMYK or grayscale with
extra channels: the image decoder refuses planar CMYK, and the readers
for CMYK inks and for extra samples returned nothing for planar files.
The two readers now read every plane through the tiff crate and put
each pixel's samples together. A planar CMYK TIFF keeps its ink
amounts and is stored as a CMYK TIFF with each pixel's inks together,
at the file's resolution. Grayscale TIFFs with an alpha channel or
other extra channels, and CMYK TIFFs with alpha, read as their chunky
versions do.
A TIFF whose header claims more strips or tiles than the tiff decoder
can count is refused as too large to draw. The decoder multiplies
those counts without a check, which panics in builds with overflow
checks.
Part of #1466.
Docs: docs/file-format-parity.md, docs/target-app-parity.md.
dataset.import read only commas between cells and refused a file whose
first header cell wasn't `name`. A value that didn't match its
variable's kind, and a repeated data set name, were reported with the
row's record number, which is not the file line after a blank line or a
quoted line break. A data set name over 255 characters gave no line.
- When the header row, read with tabs between cells, has a tab and no
comma outside quotes, tabs separate the cells. A quoted cell may then
hold tabs and commas.
- Without a `name` column every header cell is a variable, and the rows
take the first free names Data Set 1, Data Set 2 and so on, as Capture
Data Set and blank name cells do. A first header cell `name`, in any
case, still holds the data set names.
- Value errors, a repeated data set name and a name over 255 characters
give the file line the row starts on.
- The Variables panel's Import Data Sets… dialog also lists .tsv files.
- import_fuzz.rs imports random text, random bytes and mutated exports,
comma- and tab-separated, into a document with bound text, visibility
and graph variables, selects up to three of the imported data sets in
turn, and exports every data set.
Docs: docs/mcp.md, docs/target-app-parity.md.
file.print, print.preview and print.setup took print settings only as
settings, so an agent had to read a preset with print.presets.list and
copy its settings into the call. They now take preset, the name of
[Default] or of a saved print preset in any case. The preset's settings
are used instead of the document's, settings applies over them, and
print.setup saves them with the document as one undo step. An unknown
name is a parameter error that lists the presets. The app's file.print
with params passes preset on to the engine.
Docs: docs/mcp.md, docs/target-app-parity.md.
PDF presets are kept one file each in a PDF Presets folder, ICC profiles as copies in a Color Profiles folder, next to the preferences; the desktop app and vectorcraft-cli use them. Adds color.removeProfile.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The MCP server read one line, ran it and answered it before reading the next,
so notifications/cancelled was never seen during a call and every request
(even ping) waited behind a running export.
- vectorcraft_doc::cancel: a thread-local cancel token and progress sink that
long work polls. Checkpoints: PDF pages, PDF flattening, geometry bake,
raster-effect flattening, drawing objects, raster artboards, and before any
file is written. A cancelled command returns EngineError::Cancelled and
changes nothing.
- Server::serve reads on its own thread: notifications/cancelled drops a
queued request or stops the running one (no reply, as the MCP spec says),
engine-free requests (ping, the list methods, prompts/get) are answered at
once, a request that would wait behind a call running for 2 s is refused
with -32003 naming that call, and _meta.progressToken gets
notifications/progress (page n of m). Queue and output are bounded.
- The remote backend stops waiting for the app when the call is cancelled.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The snap ring on an anchor (or a dot on a line) and the rubber band now follow the snapped point, so both measured points visibly land on anchors.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The Shift click already snapped the second point to 45-degree steps, but the dashed line from the first point followed the raw pointer, so the constraint looked absent until the click.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A path with a Transform effect that makes copies and a gradient was still merged into one path by bake_leaf and expand_leaf, so the gradient spanned every copy. Route it through reshape / expand_outlined like the renderer does.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
artboard.setProps and artboard.fitToSelection read an `index` that is
negative, fractional, a string or null as 0 and edited the first
artboard, and artboard.setProps edited the first artboard when the
call named no `index`. artboard.duplicate, artboard.copy and
artboard.cut took the Artboard tool's artboard for such an `index`.
artboard.reorder failed for it with "missing index".
These commands now read `index` as artboard.delete, artboard.move and
artboard.fitToArt do, and fail with "no such artboard" when it names
no artboard; the document and the clipboard stay as they were.
artboard.setProps without `index` fails with "missing index". Without
`index`, artboard.fitToSelection still fits the first artboard and the
copy commands still take the Artboard tool's artboard.
Docs: docs/mcp.md.
Found while testing crates/doc/src/graph.rs:429 (GraphSpec::to_csv) and crates/engine/src/cmd/graph.rs:85 (parse_csv)
Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
document.rasterEffectsSettings accepts a resolution from 1 to 2,400
ppi, but a file's raster_effects_ppi opened as it was saved. With 0,
-5 or 5000 in the file, object.rasterize without a ppi param failed
with "ppi must be between 1 and 2400", and document.rasterEffectsSettings
and document.info reported the stored value. With 0 or -5, EPS and
PDF export wrote a freeform gradient as a 1 x 1 px image, and EMF
export wrote every gradient as one. A saved New Document preset in the
preferences kept such a value too.
A file's or a saved preset's resolution outside 1 to 2,400 ppi is now
read as the nearer end of that range. Documents with a resolution in
range open as before.
Docs: docs/mcp.md (resolution, rasterEffectsPpi).
Expand had nothing for Intertwine groups. It reported success but left
the group live (it only dropped the members' live shapes), and its
Stroke and Fill options could not reach the members, so a second Expand
found nothing to do. Ungroup takes apart plain groups only, so it did
nothing either.
Expand's Object option now turns every Intertwine group in the selection
(inside groups too, inner ones first) into a plain group of what it
draws: its objects, keeping their ids and order, then each part drawn
over the others as a clip group. The group keeps its id, place,
transparency and appearance, everything happens in one undo step, and
the dialog enables Object for an Intertwine group. Ungroup then takes
the result apart, as with an expanded blend or repeat.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Reverts the fallback that merged the layers of art selected on the canvas when no
layer row is highlighted: Illustrator's Merge Selected merges the highlighted rows
into the last one highlighted.
With no highlighted rows and art selected in two or more layers (Select All), layer.merge merges those layers; the panel menu enables it then.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The overflow marker was drawn by the Type tools only, so with the Selection tool a text box smaller than its text showed no sign that text was hidden. Session::overlays now adds the marker of every selected area type and type on a path that overflows, unless a Type tool is active (it draws its own). The verdict is cached per object and font generation.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
On main, cargo xtask wasm printed an unused-import warning for json in
crates/engine/src/cmd/fileio/action_batch.rs, and this check reported
it as an error:
RUSTFLAGS=-Dwarnings cargo check -p vectorcraft-engine --target wasm32-unknown-unknown
Every use of json! in action_batch.rs is in code compiled only for
native targets. The wasm32 version of action_batch uses Value only.
The json import now has the same #[cfg(not(target_arch = "wasm32"))]
attribute as the code that uses it. Native builds import the same
names as before.
Found while testing crates/engine/src/cmd/graph.rs:193 (fmt_value)
Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
document.rasterEffectsSettings accepts addAround from 0 to 1,000 pt,
but a file's raster_effects.addAround opened as it was saved. With
addAround 1e300, the area of a raster effect image overflowed f64,
the image scale became 0 and the image got the transform
[inf, NaN, NaN, inf, x, y]. PDF export left that image out, so the
drop shadow was missing.
A file's addAround now opens clamped to 0 to 1,000 pt. An effect
image whose area or scale is not finite is not made. Export then
keeps the object with its effects, and Expand Appearance expands it
without an image, as when its PNG can't be encoded.
Docs: docs/mcp.md (addAround).
Crop Image's trim (object.cropImage {trim: true}) decoded the image
within MAX_RASTER_ALLOC (2 GB) and then converted it to RGBA. The
decoder holds the decoded image, before conversion, to that allowance,
so a gray or 1-bit image within it could take up to four times as much
once converted.
Trim now reads the image's size from its header first and, when
width × height × 4 is over the allowance, fails before anything is
decoded, with the check and message Load Texture uses: "an image of
W × H pixels is too large to draw". Images within the allowance are
trimmed as before.
A raster export compared the process-wide count of images that could
not be decoded before and after it drew, and warned that "an image
couldn't be decoded and is missing from the picture" when the count
rose. Any other thread that failed to decode an image in that time
raised the count too: a second export, the UI thread drawing the
canvas, or the canvas, thumbnail and placed-document workers drawing a
document with such an image. The export then warned about an image it
does not contain. In the engine's tests,
options_not_applied_yet_and_document_features_warn failed in 5 of 60
runs of the tests_raster and tests_pdf* tests.
The count is now kept per thread. An export reads it on the thread it
draws on. That thread decodes every image the export draws that is not
already in the shared image store, and an image that failed to decode
is never stored.
Node editing as the public manual describes it: Direct Selection's anchor squares (hollow
or filled), Reshape Segment over a curved segment, Group Selection's plus (also Direct
Selection with Alt), the arrow hollow while a drag snaps, and Alt-copy arrowheads. The
Anchor Point caret, the Curvature pen and Free Transform's side-shear arrows (ShearH,
ShearV) are drawn in code. Lasso, the freehand, symbolism and other tools return cursors
of their own that borrow their old look until drawn (Cursor::stand_in).
crates/tools/src/cursors.toml lists every Cursor value, when it shows and its hotspot,
for whoever draws them; `cargo xtask cursors` (in ci) warns about a missing, unknown,
repeated or incomplete entry and never fails. The busy cursor is listed as missing (G1).
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
View › Guides › Release Guides only cleared the guide flag on paths
made with Make Guides. Ruler guides could not become paths by any
route, and with only ruler guides selected the command released every
guide path in the document instead.
Release Guides now also releases the selected ruler guides. Each one
becomes an open straight path with no fill or stroke at the top of the
guide's layer: an artboard guide runs across its artboard, and a
canvas guide runs across the bounds of all the artboards. The ruler
guide is deleted, the released paths are selected, and the release is
one undo step. With no guide selected, every guide path is released,
as before.
view.guides.release takes index (a ruler guide) and ids (guide paths,
and the guide paths inside them). Both are refused while guides are
locked, and index takes only a guide on a shown, unlocked layer.
Docs: docs/mcp.md, docs/target-app-parity.md.
Issue #1935 asks for batch exports of many logo variations in many
formats, each format in its own folder. This builds on Export for
Screens, which already writes every chosen artboard in every format row.
Names: a file name pattern (`name`) names every file alike. Tokens:
<filename> (the document), <name> (the artboard, asset, layer or
object), <index>, a run of # (a counter, zero-padded to the run's
length, from counterStart; counterPer item or file), YYYYMMDD,
YYYY-MM-DD, <date>, <time>, <YYYY>, <MM>, <DD>, <format>, <scale> and
<suffix>. A trailing .ext is dropped. Words are not changed: only the
date patterns and the bracketed tokens are. `date` sets the day (the
default is today, UTC). Different files that a pattern names alike get
-2, -3... Without a pattern, two rows with one name still write the
first row only, as before.
Folders: `folders` puts all files in one folder, a folder per row (as
Create Sub-folders did), per extension, per item, or per item and then
extension.
What is exported: besides artboards, assets and the full document,
`layers` (each layer's art alone, sublayers included) and `selection`
(one file of the selection, or a file per object).
Formats: rows can also be EPS, AI and VectorCraft (a document of the
item alone, its one artboard). A PDF row with printer's marks (PDF
Print in the dialog: trim, registration, colour bars, page information,
suffix -print) sits next to a plain PDF row.
Presets: document.exportPresets.list, .save and .delete keep batch
export presets with the preferences, and `exportPreset` uses one under
the call's own params. Built-in: Logo Package (SVG, PNG 1x and 2x, PDF
and print PDF, a folder per format) and Print-Ready PDF.
Dialog: Layers and Selection tabs with thumbnails; an Export Preset
menu with Save and Delete; Folders; File Name with Insert for the
tokens, Start at, Prefix, and an example of the first file's name. The
OK button says Export Layer or Export Selection on those tabs.
Tests: the pattern tokens, the request's example (SVG, PNG, PDF and
print PDF for artboards 1-3, a folder per extension, the print PDF a
bigger page), folders by item and both, the counter by item and by
file, numbered duplicates, layers and the selection, EPS, AI and
VectorCraft per artboard, presets (built-in, saved, used, replaced,
deleted, kept with the preferences), bad params, and the dialog (every
tab, the example name, a pattern export into folders, the Layers and
Selection tabs, presets applied and saved). The three tests that
refused EPS and VectorCraft rows now check those files. New labels
are translated in all 19 catalogs.
The Paragraph panel menu's Hyphenation… was always disabled, and
automatic hyphenation used fixed limits: words of 6 letters or more,
3 letters on each side of the hyphen, any number of hyphenated lines
in a row, and capitalized words hyphenated.
Each paragraph now has hyphenation options: Words Longer Than, After
First, Before Last, Hyphen Limit, Hyphenation Zone and Hyphenate
Capitalized Words. The defaults are the fixed limits, and documents
keep their line breaks. The options are saved only when they differ
from the defaults. text.setFormat takes wordsLongerThan, afterFirst,
beforeLast, hyphenLimit, hyphenationZone and hyphenateCapitalized, and
paragraph styles carry the options. Hyphen Limit applies with both
composers. Hyphenation Zone applies with the Single-line Composer: a
line whose text before the next word already ends within the zone
breaks before that word instead of hyphenating it.
Hyphenation… is enabled with type selected and opens a Hyphenation
dialog (ui.hyphenation) on the values the Paragraph panel shows. OK
runs text.setFormat with the values that changed, as one undo step.
Docs: docs/mcp.md, docs/target-app-parity.md.
A double-click on an object or group fits one artboard to the visible bounds and does not open Artboard Options. The second click does not fit another artboard. Other artboards stay. Double-clicking empty artboard space still opens Artboard Options. Double-clicking the name drawn above an artboard renames it.