VectorCraft had no lists. A bullet could only be typed as a character,
and the tab after it did not stop at the left indent. The reference app
turns paragraphs into a bulleted list from the Paragraph panel, the
context menu and Type › Bullets and Numbering › Apply Bullets.
text.setFormat takes list ("none" or "bullet") and bullet ("none",
"dot", "dash", "circle" or "square"). The layout draws the bullet before
the first line of each list paragraph that has text, in the font, size
and color of its first character, and starts the text at the next tab
stop, with the left indent counted as a stop. Wrapped lines start at
the left indent, and type on a path draws the bullet too. In a
horizontal right-to-left list paragraph the indents are mirrored: the
bullet hangs at the right, and the wrapped lines start at the right
where the first line's text starts after the bullet. The bullet is not
a character of the text. A paragraph whose left and first-line indents
are both 0 gets 18 pt and -18 pt when it joins a list. Return continues
the list, paragraph styles carry it, Reset Panel turns it off, and the
native file saves it only when it is set.
The Paragraph panel has a Bullets button with a list of the five
presets, and Type › Bullets and Numbering › Apply Bullets and the
context menu run type.applyBullets. Live SVG text writes the bullet's
character, and SVG writes type on a path with bullets as outlines. DXF
writes the bullet as a TEXT entity of its own, and legacy .ai export
warns that bulleted lists are left out. The caret, selections, Touch
Type and Show Hidden Characters skip the bullet.
Live SVG text of horizontally scaled type now writes each tab in a
tspan of its own. Before, the characters before a tab shared its tspan,
and its textLength made a viewer stretch them across the tab's gap.
Docs: docs/mcp.md, docs/target-app-parity.md.
A root size without a viewBox sets up the em, a viewBox that isn't square is centred in it, and a glyph element nested in others is drawn on its own, as if used.
Many tools note things on SVG objects in attributes of their own XML
namespace: a plotter's pen, a cutter's passes, a game engine's
collision flag. Import dropped them, so a file that went through
VectorCraft lost what other software had set on its objects. #522
asked for unknown and data-* attributes to survive a round trip; #580
kept the data-* ones, and this keeps the ones in other applications'
namespaces.
- Import keeps every attribute in a namespace that isn't SVG's,
XLink's, XML's, Inkscape's, Sodipodi's or VectorCraft's own, on the
object or layer it belongs to, in order, with its namespace URI and
the prefix the file gave it (ObjectAttributes::foreign, beside the
data-* attributes and the event handlers). The file is untrusted: at
most 64 per object and 64 KiB per value, and what is left out is
warned about. Files that declare no other namespace skip the scan.
- They are the object's own, as its data-* attributes are: a pasted
copy and a duplicate keep them, and deleting the object takes them
with it. The native file keeps them in the object's attributes, a
key written only when an object has some.
- Export writes them back on the same elements and declares each
namespace once, on the root, under the file's prefix. A prefix the
export uses itself, or that another namespace already has, becomes
prefix2, prefix3...; one XML keeps for itself (xml...) becomes ns. A
name or value XML can't hold is left out with a warning.
Nothing in VectorCraft reads them, and nothing in the UI lists them.
svg/tests/foreign_attributes.rs: a layer's and a shape's attributes
survive import, export and import again, Inkscape's and Sodipodi's
own aside and with no warnings, and the native form round-trips;
prefixes are made unique, and bad names and values are left out with
a warning; the caps hold and are warned about once.
engine tests_attributes.rs: a pasted copy and a duplicate keep them, a
deleted object leaves none behind, and the native file and SVG export
keep them.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HhvnnnD5fTFupK8WWq35un
Illustrator 30.0's gradient Method, from the public documentation
(https://helpx.adobe.com/illustrator/desktop/paint-and-fill/create-and-edit-gradients/control-perceptual-interpolation-in-gradients.html):
Classic or Perceptual; perceptual interpolation matches colour transitions to
how the eye perceives differences between colours, and perceptual gradients
are rasterised when saved as PDF or SVG.
- Gradient gains `method` (Classic | Perceptual; serde default Classic,
written only when Perceptual, so older files open as Classic and Classic
files are written as before). The colour crate's OKLab helpers open up for it.
- Perceptual mixes neighbouring stop colours in OKLab (sample, and
sample_keep_model for the stroke meshes, Expand and blends); opacity stays
linear. Renderers that mix linearly get stops on the perceptual curve,
placed by halving each half segment where a straight line strays more than
0.4 of a colour level (a nearly straight segment needs none). Classic
gradients expand exactly as before.
- draws_as_pixels includes Perceptual gradients, so SVG and PDF write a
Perceptual fill or stroke as an image at the document's raster effects
resolution, clipped to what it paints. A gradient along or across a stroke
stays slices (PDF no longer draws it as a within-stroke image).
- With Dither: a dithered Perceptual fill is the perceptual mix with dither's
noise (the canvas's dithered grids are keyed by method too); SVG and PDF
write it as an image with the noise, and a dithered Perceptual stroke as an
image without it, as the canvas draws it (GradientPaint::pixels, SVG's
raster_paint and PDF's area are told whether they paint a fill).
Illustrator 30.0's gradient Dither, from the public documentation
(https://helpx.adobe.com/illustrator/desktop/paint-and-fill/create-and-edit-gradients/control-dither-in-gradients.html):
a Dither checkbox in the Gradient panel; dither converts the gradient into
pixels with subtle noise, works with gradient fills only, and follows the
Document Raster Effects resolution.
- Gradient gains `dither` (serde default false, written only when on, so
older files open unchanged and new files keep it).
- The renderer draws a dithered linear or radial fill as an image paint: the
gradient sampled a cell per device pixel or finer (quarter-octave steps,
cached per thread), each channel given seeded triangular noise of up to a
level before rounding. Same pixels every run; strokes and undithered fills
draw exactly as before. PNG and other raster exports go through it.
- SVG and PDF write a dithered fill as an image at the document's raster
effects resolution, clipped to the shape (the freeform-gradient path);
characters' fills stay vector gradients in SVG, with a warning.
- paint.editGradient and paint.setFill take `dither`; strokes refuse it.
The Gradient panel's Dither box is dimmed behind the Stroke proxy.
- i18n rows in all 24 catalogs; docs: G13, target-app-parity, ui-parity,
mcp.md, plugins.md.
Review follow-up (CodeRabbit): the blank-name check ran on the raw name, so
a name made only of characters XML can't hold (control characters) wrote an
empty <title>. The name is sanitised first, then the fallback applies. The
title test covers such a name; it fails without the change.
The SVG writer always wrote the document's title in <title>
(crates/svg/src/export.rs), so every file of Export As with Use
Artboards, Export for Screens or an `artboard`/`range` export was titled
after the document ("Icons"), whatever its artboard was called. The
writer's `artboard` option can't tell those apart from Save: Save writes
the first artboard too, standing for the whole document.
ExportOptions has a new `artboard_title` (set by the caller, as
`artboard` is, not deserialized): the file is that one artboard, exported
on its own, and its <title> is the artboard's name (XML-escaped as
before), or the document's title when the artboard has no name. The
engine's SVG encoder (fileio/svg.rs) sets it exactly when the export
names its artboards, which is also when a file holds only that
artboard's art (#550): Export As per artboard, document.export /
serialize with `artboard` or `range`, MCP export, and Export for Screens'
artboards, assets, layers and selections (each written as an artboard
named after it). Save and Save As keep the document's title. Export for
Screens' Full Document draws the art bounds as one artboard, which is now
named after the document, so its SVG keeps the document's title too.
docs/file-format-parity.md's SVG row says so.
Tests: title_control_chars::an_artboard_exported_alone_is_titled_after_it
(crates/svg: two named artboards, the second named with markup;
exporting either alone gives its escaped name, the default and an
artboard without artboard_title give the document's title, an unnamed
artboard falls back to it) and
tests_svgenc::an_svg_of_one_artboard_is_titled_after_it (the engine:
`artboard` 0 and 1, useArtboards range all, Save's SVG, Export for
Screens per artboard, an asset and Full Document). Both fail without the
change (the title was "Icons") and pass with it.
Store corner radii as fractions of each corner's max so rounding scales with the shape; expose via Corners dialog and object.setLiveShape relativeRadii.
Co-authored-by: Cursor <cursoragent@cursor.com>
Shrink Text to Fit scales area type down at layout time, and the canvas,
PDF export and the exports that write type as outlines draw it at that
size. SVG export wrote the live text at its stored font size, letter
spacing and baseline shift, so a viewer drew it larger than the canvas
does. Legacy .ai saves wrote the stored size, leading and baseline shift
into the text objects, DXF export took the TEXT heights from the stored
size, and the CSS Properties panel gave the stored font size, letter
spacing and line height.
The text crate's scaled, which the layout scales shrunk text with, is
now public. SVG export, legacy .ai saves and the CSS Properties panel
take the type's styles from it at the layout's fit scale, and DXF
export multiplies the TEXT heights by that scale. Positions and
textLength in SVG still come from the layout.
Docs: docs/target-app-parity.md.
Optical Margin Alignment and Roman Hanging Punctuation hung punctuation
in point and area type only. Type on a path kept its first and last
glyphs inside its brackets with either option on.
When Optical Margin Alignment is on, or the first paragraph has Roman
Hanging Punctuation on, the glyphs at the ends of left-to-right type on
a path now hang outside its brackets by the same amounts, measured
along the path. The type hangs at the start bracket when its line is
placed there, hangs at the end bracket when the line is placed there,
and hangs at both when it is centered. Glyphs that hang past the end
bracket do not make the type overflow. On an open path a hang stops at
the path's end, and on a closed path the two hangs together take at
most the stretch between the end and start brackets. SVG export writes
type on a path that hangs as outlines, with a warning.
Docs: docs/mcp.md, docs/type-parity.md, docs/target-app-parity.md.
Found while testing crates/svg/src/export.rs:138 and :143
Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
style_weight reads W0–W9 style names (Hiragino, Morisawa…) as their weight classes before the English words, so SVG and CSS export write font-weight 600 for W6, and nearest-style matching weighs them too.
The Paragraph panel menu's Justification… was a disabled stub, and justified
lines stretched word spaces between fixed limits (80% to 150%).
Each paragraph now has Justification options: Word Spacing, Letter Spacing
and Glyph Scaling (Minimum, Desired, Maximum, in percent), Auto Leading and
Single Word Justification. Desired applies to every line; a justified line
fills its measure with word spacing first, then letter spacing, then glyph
scaling, each within its range, and past them its word spaces take the
rest. The Every-line Composer scores lines by that flexibility. Auto
Leading sets the leading of characters whose leading is Auto. A justified
line holding one word is spread between its letters (Full Justify) or
aligned left, centre or right.
The defaults are the documented ones (80/100/133, 0/0/0, 100/100/100, 120,
Full Justify), saved only when they differ. Because the default maximum
word spacing is 133%, justified paragraphs break differently than before;
the Every-line Composer's second pass is now unbounded for justified text
(it used to give up past four times the stretch and fall back to the
Single-line Composer, which the narrower default range would make common),
and lines that can't stretch at all are still refused.
text.setFormat takes wordSpacing, letterSpacing, glyphScaling ([min,
desired, max] or {min?, desired?, max?}), autoLeading and
singleWordJustification; Minimum ≤ Desired ≤ Maximum must hold or nothing
changes. Paragraph styles carry the options (New and Redefine capture
them), and Reset Panel resets them. Justification… opens a dialog
(ui.justification) with Preview; OK is disabled while a row is out of
order. Live SVG text places characters the options move, and a glyph that
Glyph Scaling scales is stretched to its width; PDF uses the glyphs'
transforms. Vertical type isn't glyph scaled; type on a path doesn't use
the options.
Docs: docs/mcp.md, docs/type-parity.md, docs/gaps.md.
Closes#2755.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
VectorCraft listed a variable font's named instances as styles, but
type could not be set between or past them. The reference app's
Character panel has a Variable Font control that adjusts a variable
font's axes, such as Weight, Width and Slant.
Type now keeps Variable Font settings by axis tag
(CharStyle::font_axes, saved as fontAxes only when set). text.setFormat
and text.setRangeStyle take fontAxes: each value is clamped to its
axis's range, a tag the font has no axis for is left out, and null
goes back to the style's own setting. Another font or style clears
them, including one from a character style that does not set them. A
character style captured from type sets them, with {} for none.
text.fontList {family, style} lists a font's axes.
Layout, outlines, the substituted-glyph highlight and PDF export use
the font instanced at the settings, and neighboring runs at different
settings are shaped apart, as runs in different fonts are. SVG export
writes them as font-variation-settings, the wght setting as the weight
and the wdth setting as font-stretch, and embeds the font instanced
there; SVG import reads font-variation-settings back. Legacy .ai export
warns that the settings are left out.
The Character panel shows a Variable Font button for a variable font.
It opens a slider and a field for each axis the font does not hide,
labeled with the font's name for the axis, and screen readers get each
slider under that name. A drag is one undo step. Reset Panel leaves
the settings, as it leaves the font and style.
Missing Glyph Protection now keeps the settings and the font version
on the characters that keep their font; before, it kept only the
family and style. A character style applied or redefined with another
font now clears the old font's version, as text.setStyle does, unless
the style sets one. SVG export with embedded fonts warns when faces of
one weight, style and width share characters, which browsers then draw
in one of the faces.
Docs: docs/mcp.md, docs/target-app-parity.md, docs/type-parity.md.
On an edge two artboards share, the artboard to the right of it or below
it holds a point, except at the end of the edge that lies on that
artboard's bottom or right edge, such as where both artboards' bottom
edges meet. There the first artboard holds it, or the last when
topmost. The doc comment and the test comments now say so, and the test
asserts that corner.
Rearrange All Artboards, Select › All on Active Artboard (for objects
with no area), Copy's source artboard for Paste in Place, Align to
Artboard without an index, Crop Image, the Crop Image tool, Place with
`at`, CSS positions and a filter plug-in's artboard decided whether a
point or an object's center is on an artboard with Rect::contains,
which leaves out the right and bottom edges. A line along an artboard's right or
bottom edge was on no artboard: Rearrange left it behind, and All on
Active Artboard did not select it. Document::art_on_artboard counts
art flush with those edges (#890).
They now count the edges as art_on_artboard does, within a millionth
of a point. On an edge two artboards share, the artboard to the right
of it or below it still holds the point. All on Active Artboard
selects a line on a shared edge from either artboard. A press exactly
on a right or bottom edge now picks that artboard, and the Artboard
tool's cursor shows Move there.
Found while testing crates/svg/src/css.rs:84 (font_props)
Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Window › SVG Interactivity was a disabled menu item. VectorCraft could
not attach JavaScript to an object's events or link JavaScript files
for SVG export.
The SVG Interactivity panel lists 19 events, from onfocusin to
onscroll. Pick one, type its JavaScript and press Enter to add it to
the selected objects; the list shows their events. Remove Selected
Entry removes the picked event, and the panel menu's Clear Events
removes all of them. Link JavaScript Files… opens the JavaScript
Files dialog, which adds a path or URL to the document's list and
removes the selected one. Its Choose… button puts a picked file in
as a file:/// URL. The commands are svgInteractivity.info,
setEvent, removeEvent, clearEvents, addFile and removeFile, and
ui.javascriptFilesDialog. Each edit is one undo step. A document
links at most 64 files.
SVG export writes each event as an event attribute on the object's
element and each file as a <script xlink:href> element. With the SVG
Tiny 1.2 profile, export leaves the events out with a warning. SVG
import reads the listed event attributes and the script links back
as text. It never reads a linked file or runs a script, and it leaves
inline scripts and the links after the first 64 out with a warning.
The native format keeps both.
An unnamed <g> with data-* attributes of its own around a single
object now imports as a group. Before, import folded it into the
object, which then took the group's data-* or, when it had its own,
dropped the group's. An unnamed <g> with event attributes stays a
group in the same way. The SVG import fuzz tests now include event
attributes and <script> elements.
Docs: docs/mcp.md, docs/control-protocol.md, docs/target-app-parity.md,
docs/ui-parity.md.
SVG export wrote each style run of a line of live text as one <tspan>
and positioned the text again only after tabs and, on justified lines,
after word spaces. A viewer then spaced the characters inside the
<tspan> with the font's own advances, so it lost the letter gaps of a
Justify All line without word spaces, the gaps between the characters
of a justified Japanese line and the spacing that a Mojikumi Set
changes. On justified lines, the textLength of horizontally scaled type
also took in the justification space after it, so a viewer stretched
the glyphs into that space.
On a line that is justified or set with a Mojikumi Set, text_lines now
lays the text out again as point type without the Mojikumi Set to get
the advance a viewer gives each character. Each character that the
layout draws away from where a viewer would draw it starts a new
positioned <tspan>, and textLength and line anchors use the viewer's
widths. The last character of a horizontally scaled <tspan> takes its
width without the font's kerning against the next character. Other
lines, and lines written with Fewer <tspan> Elements, are written as
before.
Docs: docs/target-app-parity.md.
A corner's radius was capped at half its shorter side whatever its neighbours did, so one corner of a 100 pt square rounded alone stopped at 50 pt. Each corner now rounds until its cut reaches the cuts its neighbours ask for: the whole side when the neighbour is square, halfway when both ask for more. The corner widget drag, the red limit outline and CSS border-radius export follow the same limit.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The characters' stroke takes Align Stroke like an object stroke: CharStyle
keeps stroke_align (written only when not centred), stroke.set and
text.setRangeStyle strokeOptions apply align to type, and the Stroke panel
enables the buttons for type. Canvas, PDF and EPS draw it around the glyphs
through stroke_layer(); SVG keeps the text live and writes the aligned
stroke on the glyph outlines, clipped or masked. Type's visual bounds grow
with its character strokes.
Symbol instances are placed through a transform as images are, so the
Transform effect now moves and copies both (transform_placed), sharing one
copy budget (MAX_COPY_OBJECTS). Copies of either stop before one reaches
past MAX_REACH, as a path's do (distort::within_reach).
Adds end-to-end export tests for a group's image copies in svg and pdf.
The default `text` features of vello_cpu (glyph runs, through glifo) and
usvg (fontdb, harfrust 0.12, skrifa 0.44 and its read-fonts 0.41) build
another copy of the font stack into the engine, next to the workspace's
skrifa 0.47 and harfrust 0.13. Neither is used: the renderer draws the
glyph outlines vectorcraft-text gives it, and SVG import reads <text>
from the XML itself and never gives usvg a font (usvg leaves out text it
has no font for).
- vello_cpu: its default features but `text` (std, png, u8_pipeline),
plus f32_pipeline as before.
- usvg: `svgz` only, for gzipped SVG images inside an SVG; `text`,
`system-fonts`, `memmap-fonts` and `writer` are off. text_layout.rs uses
usvg as a reference viewer with a font, so crates/svg turns `text` on as
a dev-dependency feature, as crates/pdf does for krilla's `simple-text`.
- A test pins `svgz`: SVGZ images, linked or as a data URL, import as
vector art.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The reference app's Drop Shadow has a Color and a Darkness, the
percentage of black added to the object's own colors. Drop Shadow had
only a Color, so every shadow was one color. Choosing one or the other,
and the defaults, are VectorCraft's own.
Drop Shadow now takes `shade` ("color" or "darkness", default "color")
and `darkness` (%, default 100). Its dialog and the Appearance panel's
inline editor show Color and Darkness as radio buttons. With Darkness
d, a CMYK document keeps the object's cyan, magenta and yellow and
raises its black from K to K + d × (1 − K), and an RGB document
multiplies each channel by 1 − d, so in RGB 0% gives the object's
color and 100% gives black. A shadow saved without these keys draws as
before. SVG export writes a Darkness shadow with feComponentTransfer
and SVG import reads it back; CSS export leaves it out.
Docs: docs/target-app-parity.md.
Use automatic vector smooth shading without a separate control.
Enable Cap by default and keep continuous rim curves and bounded seam joins.
Integrate the shared dialog with the other three 3D effects.
usvg's style sheets (simplecss) drop rules whose selector has a :not(), so
rect:not(.keep) { fill: green } left the rect as it was. The text pass's own
cascade now reads :not() of a list of compound selectors (counted as its most
specific argument), and the import pre-pass writes what such rules set on an
element into its style attribute, with the value that wins the cascade there,
so usvg reads what CSS would: against other rules, the style attribute and
!important, inherited from groups, display: none and CSS transforms included.
Selector lists are split at top-level commas only.
Every symbol instance was measured as its transform applied to the
20 × 20 square around the origin, which symbols made in the app keep
their art in. The SVG and DXF importers keep symbol art as drawn, so
the box of an instance of an imported symbol did not match its art.
The SVG Star instance at x 20, y 30 draws from (20, 30) to (40, 50)
and was measured from (10, 20) to (30, 40). Align moved such an
instance by the wrong amount, clicks and marquees beside its art
selected it, and the canvas, exports and prints left it out when its
art reached the view or the page and the square did not.
An instance is now measured by its symbol's art, which
Document::symbol_boxes looks up in the document each time
(Node::geometric_bounds_with, visual_bounds_with and
reach_bounds_with). With Use Preview Bounds on, the strokes in the art
count at their own weight, as the canvas draws them, and
object.setBounds counts them at that weight when it sizes an instance
or an object that holds one. When strokes do not scale and a width or
height of 0 or more is smaller than what a path's stroke adds,
object.setBounds now gives the path no width or height, as it does
for an instance whose art has strokes; before, it mirrored the path.
With Use Preview Bounds on, object.setBounds now measures the margins
that strokes add object by object, the members of groups and the
objects in symbol instances' art included, and solves for the width,
height and reference point asked for when the width and height are 0
or more. Before, it measured the margins of the whole selection and
could miss the size or the reference point asked for when strokes did
not scale and the objects' strokes added different margins, and when
strokes scaled and the width and height were out of proportion, even
for one path. A clip group, a Shaper Group, a compound path, type, and
a group or instance with effects or an opacity mask of its own are each
measured as one object, and so is an instance in perspective or one
turned or slanted relative to the bounding box, other than by quarter
turns. When the selection holds more than 4,096 objects to measure this
way, each selected object is measured as one. Instances inside symbol
art are measured by their own symbol's art. An instance is measured as
the square when its symbol is missing, when its symbol or a symbol
nested in its art holds an instance of itself, and when symbols nest 32
deep in its art.
Align and Distribute, the Transform panel, the bounding box and the
selection outline, clicks, the marquee, document.inspect and
document.node, Fit to Artwork Bounds and Fit to Selected Art, canvas
culling, thumbnails, the SVG filter region of an instance with a
raster effect, raster effect images, Export Selection, the SVG of an
artboard, printing, and the PDF, EPS, EMF/WMF and DXF writers use the
new box. The renderer also culls an instance by the effects and
brushed strokes in its art, and it culls a blend, envelope or repeat
by the brush art of what it holds and the effects in the art of the
instances in it. It culls an instance with geometry effects of its own
by the effects in its art after those geometry effects reshape the art.
It measures the effects in a symbol's art once for each symbol and
linear part of the transform that places it. For symbols whose art
holds instances, it measures at most 4,096 placements a frame, and at
most 4,096 more for each pattern tile it rasterizes and each placed
document it draws. Past that, it estimates the reach from the symbol's
reach with no transform, which it measures once. When the drawn
document's symbols change, the renderer drops the cached bounds of the
instances and of the objects that hold them.
The PDF and EPS writers, the SVG of an artboard and Skip Blank
Artboards grow the box of an instance whose art holds brushed strokes
by 16 times the widest stroke (at least 1 pt) of the objects in that
art that have a brushed stroke, plus 8 pt, as the renderer grows the
cull bounds of a brushed path. They keep an instance whose brush art
reaches the page. The SVG of an artboard also keeps an object that
holds an instance when what the canvas paints for it, the effects in
the symbol's art and the instance's own included, reaches the artboard.
Not yet: other commands that measure objects, such as Select › All on
Active Artboard, Transform Each and Convert to Artboards, still measure
an instance by the square.
Docs: docs/mcp.md, docs/target-app-parity.md.
Inkscape 1.2+ saves a multi-page document as <inkscape:page> elements
in its <sodipodi:namedview>; VectorCraft opened it with one artboard
the size of the root, leaving the other pages' art outside any. Each
page with a size now becomes an artboard at its place (through the
viewBox, as the art is), named by its inkscape:label or "Artboard N".
Files without pages keep their one artboard.
Fixes#1601
A filter that can't become a live effect warned "filter on a group
ignored", even on a plain <rect>: usvg wraps every filtered element in
a group of its own, which the message named. The warning now names the
filter and its primitives and the element (by id, or "an object"), and
says it is drawn without it: "filter 'f' (feColorMatrix) on an object
isn't supported; drawn without it".
Fixes#1598
<flowRoot> (SVG 1.2 flowed text, which Inkscape writes for text typed
into a frame) was dropped without a word: usvg doesn't draw it. The
text pass now reads it as area type: the first <rect> of its
<flowRegion> is the frame (with the rect's transform), each <flowPara>
a paragraph (white space collapsed), styled through the same cascade
as <text>. Another kind of region leaves the text out with a warning.
Fixes#1568
bflatastic