M2.1: retain gradient placement when deletion splits paths (#3380)

crates/engine/src/cmd/path.rs

@@ -1267,9 +1267,14 @@ pub(crate) fn delete_anchors(s: &mut Session, p: &Value) -> Result<Value> {
 
 /// Deletion splits an ordinary contour into sibling objects. Existing multi-subpath paths and
 /// explicit compound members keep their compound semantics, even when a member has one contour.
+/// Separate objects retain the gradient placement of the original path.
 pub(super) fn replace_deleted_pieces(d: &mut Document, beside: &mut Beside, id: NodeId, subpaths: Vec<SubPath>) -> Result<Vec<NodeId>> {
     let single = d.node(id).and_then(|n| n.path_data()).is_some_and(|p| p.subpaths.len() == 1);
     if single && compound_or_self(d, id) == id {
+        // Pin only actual splits: each new object's smaller bounds would otherwise refit its gradients.
+        if subpaths.len() > 1 {
+            d.node_mut(id).ok_or(EngineError::NoNode(id))?.pin_gradients();
+        }
         super::draw2::replace_with_pieces(d, beside, id, subpaths.into_iter().map(PathData::single).collect())
     } else {
         path_mut(d, id)?.subpaths = subpaths;

crates/engine/tests/it/delete_path_pieces.rs

@@ -1,9 +1,10 @@
 //! Original synthetic geometry for the deletion half of #3380; no external fixtures.
 
 use serde_json::json;
+use vectorcraft_color::{Gradient, GradientGeom, GradientKind, GradientPaint, Paint};
 use vectorcraft_doc::{Appearance, NodeId, NodeKind};
 use vectorcraft_engine::Session;
-use vectorcraft_geom::{Affine, Anchor, PathData, SubPath};
+use vectorcraft_geom::{Affine, Anchor, PathData, Rect, SubPath};
 use vectorcraft_testkit::{invariants::check_session, raster::render_artboard};
 
 /// Create the same rectangle for the edited path and its stacking-order neighbors.
@@ -157,3 +158,86 @@ fn deletion_preserves_intentional_multi_subpaths_and_compound_members() {
         }
     }
 }
+
+/// Splitting keeps the original gradient fit on every piece and leaves placed vectors unchanged.
+#[test]
+fn deletion_split_preserves_gradient_placement() {
+    for command in ["edit.clear", "path.deleteAnchors", "edit.cut"] {
+        for kind in [GradientKind::Linear, GradientKind::Radial] {
+            for placed in [false, true] {
+                let mut s = session();
+                let id = rectangle(&mut s);
+                let mut fill = GradientPaint::new(Gradient { kind, ..Default::default() });
+                fill.angle = 45.0;
+                let mut stroke = GradientPaint::new(Gradient { kind, ..Default::default() });
+                stroke.angle = 90.0;
+                if placed {
+                    fill.geom = Some(GradientGeom::fit(kind, Rect::new(20.0, 10.0, 160.0, 150.0), 35.0));
+                    stroke.geom = Some(GradientGeom::fit(kind, Rect::new(10.0, 20.0, 150.0, 160.0), -25.0));
+                }
+                {
+                    let n = std::sync::Arc::make_mut(&mut s.doc_mut().unwrap().doc).node_mut(id).unwrap();
+                    n.transform(Affine::translate((10.0, 5.0)) * Affine::rotate(0.15), false);
+                    n.appearance = Appearance::basic(Paint::Gradient(Box::new(fill.clone())), Paint::Gradient(Box::new(stroke.clone())), 8.0).into();
+                }
+                s.execute("select.segments", &json!({"id": id.0, "segments": [[0, 1], [0, 3]]})).unwrap();
+                let st = s.doc().unwrap();
+                let before = st.doc.clone();
+                let before_selection = st.selection.clone();
+                let history = st.history.undo.len();
+                let original = before.node(id).unwrap();
+                let bounds = original.geometric_bounds().unwrap();
+                let fill_geom = fill.resolve(bounds);
+                let stroke_geom = stroke.resolve(bounds.inflate(4.0, 4.0));
+                // The old single-node remainder keeps the original full bounds. Its rendering is
+                // an independent reference for the two new objects, including unplaced gradients.
+                let mut expected = (*before).clone();
+                let a = &original.path_data().unwrap().subpaths[0].anchors;
+                if let NodeKind::Path { path, live, .. } = &mut expected.node_mut(id).unwrap().kind {
+                    *path = PathData::new(vec![SubPath::new(vec![a[2], a[3]], false), SubPath::new(vec![a[0], a[1]], false)]);
+                    *live = None;
+                }
+                let expected_image = render_artboard(&expected);
+                assert!(expected_image.ink() > 0);
+                s.execute(command, &json!({})).unwrap();
+                let st = s.doc().unwrap();
+                assert_eq!(st.selection.objects.len(), 2);
+                assert_eq!(st.history.undo.len(), history + 1);
+                assert!(render_artboard(&st.doc) == expected_image, "{command}, {kind:?}, placed: {placed}: gradient colors moved");
+                for piece in &st.selection.objects {
+                    let n = st.doc.node(*piece).unwrap();
+                    for (paint, expected_geom) in [(n.appearance.fill_paint(), fill_geom), (n.appearance.stroke_paint(), stroke_geom)] {
+                        let Paint::Gradient(g) = paint else { panic!("gradient was replaced") };
+                        assert_eq!(g.geom, Some(expected_geom), "{command}, {kind:?}, placed: {placed}");
+                    }
+                }
+                let after = st.doc.clone();
+                let after_selection = st.selection.clone();
+                s.execute("edit.undo", &json!({})).unwrap();
+                assert_eq!(s.doc().unwrap().doc, before);
+                assert_eq!(s.doc().unwrap().selection, before_selection);
+                s.execute("edit.redo", &json!({})).unwrap();
+                assert_eq!(s.doc().unwrap().doc, after);
+                assert_eq!(s.doc().unwrap().selection, after_selection);
+                assert!(render_artboard(&s.doc().unwrap().doc) == expected_image);
+                check_session(&s).unwrap();
+            }
+        }
+    }
+}
+
+/// A connected remainder keeps automatic fitting; pinning is needed only for separate objects.
+#[test]
+fn deleting_one_segment_keeps_unplaced_gradients() {
+    let mut s = session();
+    let id = rectangle(&mut s);
+    let paint = Paint::Gradient(Box::new(GradientPaint::new(Default::default())));
+    std::sync::Arc::make_mut(&mut s.doc_mut().unwrap().doc).node_mut(id).unwrap().appearance = Appearance::basic(paint.clone(), paint, 8.0).into();
+    let appearance = s.doc().unwrap().doc.node(id).unwrap().appearance.clone();
+    s.execute("select.segments", &json!({"id": id.0, "segments": [[0, 1]]})).unwrap();
+    s.execute("edit.clear", &json!({})).unwrap();
+    let st = s.doc().unwrap();
+    assert_eq!(st.selection.objects, [id]);
+    assert_eq!(st.doc.node(id).unwrap().appearance, appearance);
+    assert_eq!(st.doc.node(id).unwrap().path_data().unwrap().subpaths.len(), 1);
+}

docs/gaps.md

@@ -1,6 +1,6 @@
 # Gaps
 
-> **Last updated:** 2026-11-08 · **Change:** #3380 documentation review follow-up (deletion only): disconnected survivors of an ordinary single-contour path become selected sibling objects; existing multi-subpath paths and compound members stay intact. Segment endpoint highlighting remains open. Scores and estimates unchanged.
+> **Last updated:** 2026-11-08 · **Change:** #3380 deletion review follow-up: split survivors keep their original bounds-fitted gradient placement; documentation evidence, geometry assertions and function docs clarified. Existing multi-subpath paths and compound members stay intact. Segment endpoint highlighting remains open. Scores and estimates unchanged.
 > **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-07 · **Change:** minor (Indian-language hyphenation review and license allowlist, #4947; opening a slow file shows a progress window, part of #5930; Hindi catalog and contributor loanword preferences; agent wording pass complete; wider native proofreading welcome; an image zoomed in on is separated, colorized or proofed only where it shows (#4155); scores and estimates unchanged; a document's first frame renders on the render worker, so opening a heavy file no longer freezes the window; scores and estimates unchanged; large images in CMYK documents are shrunk before they are separated into ink planes (#4155); scores and estimates unchanged; `.ai` paths with a Calligraphic brush open brushed, with the 6D Art Pen's channels, and Windows reads the pen's tilt and barrel rotation, #372; scores and estimates unchanged; Compound Shapes add-on, beyond Illustrator; scores and estimates unchanged; Contour add-on, beyond Illustrator; scores and estimates unchanged; a slow first frame is waited for instead of restarting without the graphics adapter, and the menu bar no longer waits for the installed fonts' scan; scores and estimates unchanged) · **Target:** Adobe Illustrator 2026 (30.x)
 
 ## Feature submission evidence
@@ -38,6 +38,7 @@ Artboard Options forwards the active Artboard tool's Scale Artwork with Artboard
 
 | Date | Change | Summary |
 |---|---|---|
+| 2026-11-08 | minor | #3380, deletion only: pin bounds-fitted gradients before creating separate survivors; placed gradients and connected remainders retain their behavior. Regression coverage checks linear/radial fill and stroke vectors, rendered survivors and Undo/Redo. Scores and estimates unchanged. |
 | 2026-11-08 | minor | #3380 review follow-up: clarify deletion evidence and survivor selection, consolidate milestone notes, and retain the open endpoint-highlighting work. Behavior, scores and estimates unchanged. |
 | 2026-11-07 | minor | #3380 (deletion only): independent surviving path objects; transformed appearance, stacking, selection, cubic handles and Undo/Redo covered by `delete_path_pieces`; compound semantics retained. Endpoint highlighting remains open; scores and estimates unchanged. |
 | 2026-11-07 | minor | Indian-language hyphenation (#4947): eleven MIT-licensed pattern sets, with grapheme and shaping-cluster protection in both composers and existing paragraph limits. Assamese and Sanskrit are selectable; Sanskrit automatic patterns remain pending an allowlisted source. Scores and estimates unchanged. |
@@ -300,7 +301,7 @@ from G14 and the budget run of G15: **~170–270 h** one agent, ~50–80 h wall
 
 ## G11 Correctness bugs in core tools
 
-- **Done, deletion only (#3380):** deleting anchors or segments that disconnect an ordinary contour creates independent selected path objects, preserving appearance, baked transforms, sibling order and one-step Undo/Redo. Existing multi-subpath paths and compound members stay intact. A second Delete removes all selected survivors. Segment endpoint highlighting remains open; broader G11 scope, scores and estimates are unchanged. Evidence: `crates/engine/tests/it/delete_path_pieces.rs` and the Delete/Backspace frame regression in `crates/ui-egui/src/tests/removeanchors.rs`.
+- **Done, deletion only (#3380):** deleting anchors or segments that disconnect an ordinary contour creates independent selected path objects, preserving appearance, baked transforms, sibling order and one-step Undo/Redo. Existing multi-subpath paths and compound members stay intact. A second Delete removes all selected survivors. Bounds-fitted gradients keep their original placement on the new objects; already placed gradients stay unchanged. Segment endpoint highlighting remains open; broader G11 scope, scores and estimates are unchanged. Evidence: `crates/engine/tests/it/delete_path_pieces.rs` and the Delete/Backspace frame regression in `crates/ui-egui/src/tests/removeanchors.rs`.
 
 - **Live trace result bounds and selection highlights exclude the retained bitmap except in source-image views:** `live_trace_result_bounds_exclude_the_retained_bitmap_at_any_angle` checks every TraceView, geometric and visual bounds and rotated result bounds. `live_trace_selection_highlight_excludes_the_retained_source_rectangle` checks result highlights and the existing ordinary-group policy. Shared editing-child traversal also preserves Shaper handling. Broader scope and estimates unchanged.
 

docs/roadmap.md

@@ -1,6 +1,6 @@
 # Roadmap: milestones and what's next
 
-> **Last updated:** 2026-11-08 · **Change:** #3380 documentation review follow-up (deletion only): disconnected survivors of an ordinary single-contour path become selected sibling objects; existing multi-subpath paths and compound members stay intact. Segment endpoint highlighting remains open. Scores and estimates unchanged.
+> **Last updated:** 2026-11-08 · **Change:** #3380 deletion review follow-up: split survivors keep their original bounds-fitted gradient placement; documentation evidence, geometry assertions and function docs clarified. Existing multi-subpath paths and compound members stay intact. Segment endpoint highlighting remains open. Scores and estimates unchanged.
 > **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-07 · **Change:** minor (Indian-language hyphenation review and license allowlist, #4947; Hindi catalog and contributor loanword preferences; full wording review in progress; Effect dialogs: a colour swatch beside a hex colour opens the Color Picker, #5365; shape tools move the selection from its centre point and turn it from the zone outside a box corner, #5477; scores and estimates unchanged) · **Target:** Adobe Illustrator 2026 (30.x)
 
 ## Feature submission evidence
@@ -37,6 +37,7 @@ M7 type: Touch Type moves a right-to-left character along its line and up from i
 
 | Date | Change | Summary |
 |---|---|---|
+| 2026-11-08 | minor | #3380, deletion only: pin bounds-fitted gradients before creating separate survivors; placed gradients and connected remainders retain their behavior. Regression coverage checks linear/radial fill and stroke vectors, rendered survivors and Undo/Redo. Scores and estimates unchanged. |
 | 2026-11-08 | minor | #3380 review follow-up: clarify deletion evidence and survivor selection, consolidate milestone notes, and retain the open endpoint-highlighting work. Behavior, scores and estimates unchanged. |
 | 2026-11-07 | minor | #3380 (deletion only): independent surviving path objects; transformed appearance, stacking, selection, cubic handles and Undo/Redo covered by `delete_path_pieces`; compound semantics retained. Endpoint highlighting remains open; scores and estimates unchanged. |
 | 2026-11-07 | minor | Indian-language hyphenation (#4947): eleven MIT-licensed pattern sets, with grapheme and shaping-cluster protection in both composers and existing paragraph limits. Assamese and Sanskrit are selectable; Sanskrit automatic patterns remain pending an allowlisted source. Scores and estimates unchanged. |
@@ -122,7 +123,7 @@ native wording review, layout checks and a web Devanagari font remain. [Notes](l
 |---|---|---|---|
 | M0 | Skeleton + vertical slice | ✅ done | — |
 | M1 | Selection, transform, layers, MCP (common command tools, strict keys, session resources and version-aware result hints) | ✅ mostly done (document-tab artwork drag with lossless resource transfer and one target Undo; malformed MCP app replies discard the connection without replay, #1761; bounded control socket waits and connection-slot recovery, #1726; bounded synthetic control input, #1709; no-op anchor Align keeps Undo, Redo and saved state (#1180 follow-up); transform reference point snaps to anchors/centres; rotated objects keep a rotated bounding box and their angle; Free Transform, Scale and Reflect along a rotated box pending; the Transform fields take one Tab each, the W/H link after them) | 4–6 |
-| M2 | Drawing tools + smart guides | ✅ mostly done (#3380 deletion creates independent selected path pieces, with endpoint highlighting still open; Polygon/Star exact-size count persistence, with repeated-drag, tool-switch and Cancel regression coverage; Curvature point markers without direction handles (#1236, in part); Direct Selection segment click/Delete preserves neighboring edges, #1278; Flare, Reshape, Live Corners widget dragging and per-corner radii and kinds landed, on any path's corners; Shaper rough-shape recognition and orientation steps, the remaining Pen modifier nuances; Shaper Groups with editable sources and separate fill/stroke edits landed; custom ruler origin with drag preview, active-artboard reset, relative X/Y fields and native round-trip (#1212); construction widget/refinements pending); a shape just drawn moves by its centre point and turns from the zone outside a corner with its tool still active (#5477); Tangent and straight-segment perpendicular snapping use saved Smart Guides Geometric Guides preferences and Control bar quick access (#2537); no View submenu | 12–18 |
+| M2 | Drawing tools + smart guides | ✅ mostly done (#3380 deletion creates independent selected path pieces and keeps bounds-fitted gradients in place; endpoint highlighting remains open; Polygon/Star exact-size count persistence, with repeated-drag, tool-switch and Cancel regression coverage; Curvature point markers without direction handles (#1236, in part); Direct Selection segment click/Delete preserves neighboring edges, #1278; Flare, Reshape, Live Corners widget dragging and per-corner radii and kinds landed, on any path's corners; Shaper rough-shape recognition and orientation steps, the remaining Pen modifier nuances; Shaper Groups with editable sources and separate fill/stroke edits landed; custom ruler origin with drag preview, active-artboard reset, relative X/Y fields and native round-trip (#1212); construction widget/refinements pending); a shape just drawn moves by its centre point and turns from the zone outside a corner with its tool still active (#5477); Tangent and straight-segment perpendicular snapping use saved Smart Guides Geometric Guides preferences and Control bar quick access (#2537); no View submenu | 12–18 |
 | M3 | Paint & appearance (swatches, color, gradient, stroke, appearance, transparency, styles) | ✅ done (M3.7–M3.98): swatches, groups, libraries, tints, Lab spots and Registration; Eyedropper styles highlighted text only (atomic transparency rejection); Eyedropper reads visible locked and outside-isolation sources (#1251); Color Picker, Color panel, Color Guide, Color Themes, Edit Colors and Recolor Artwork (screen-bounded Edit chip list, #3416); gradients that follow every transform, the annotator, linked stops, freeform gradients, focal points, gradients on strokes and Expand; visible strokes when paint is added to inherited None/zero-width art (#1253); stroke geometry, arrowheads, dashes fitted to corners, stroke on type, width profiles and the Width tool (Shift-double-click enables adjoining adjustment in Width Point Edit; finite-arithmetic follow-up regressions and full CI passed ([Validation evidence](target-app-parity.md#evidence-what-ships-today-by-area))), Scale Strokes and preview bounds; Appearance targeting, container appearance, target circles, Expand Appearance; knockout, isolation, blend accuracy, CMYK blending, overprint, Attributes, masks and clipping, Flatten Transparency; graphic styles, links and libraries; CSS library export preserves fractional linear and radial gradient stop positions. Left: freeform gradients in SVG/PDF, mixed spot/process gradients in SVG and PDF gradients mixing a spot color with RGB or Lab stops export as stops or process colors; PDF export writes dithered gradient fills with spot stops, and Perceptual spot gradients with RGB or Lab stops other than white or more than 4,096 stops on their curve, as images in process colors; confirm the Scale Strokes & Effects default; Recolor model selection is available through the engine and MCP only (#2520); the dialog retains its existing controls | 4–8 |
 | M4 | Files (native, SVG, PDF, raster, Export for Screens, clipboard interop) | ✅ done (M4.14–M4.98 on 2026-10-05): Save As/Save a Copy/Revert/templates, Data Recovery and background save, SVG import and export fidelity (units, text, symbols, filters, SVGZ, Preserve Editing, SVG Options), shared guarded PDF writer and windowed reader ([pdf-backend.md](pdf-backend.md)), PDF import (colours, layers, masks, editable text, security) and export (presets, marks, bleed, ICC and output intent, raster effects, subset fonts, PDF/X-1a, X-3 and X-4, PDF layers, overprint, page thumbnails, fast web view, PDF 1.3), Place and Links, Package, EPS and DXF in and out (EPS legacy mesh corners, vector opacity masks and raster page comparison verified; closed SPLINE flags round-trip and circular paths export as native CIRCLE/ARC, #1299), EMF/WMF, TIFF/BMP/Targa/PSD/GIF/PNG-8 export, Print and print presets, slices, Save for Web, TIFF in Export for Screens and Asset Export, clipboard flavours, File Info; AF.1–AF.4 add Affinity import (native layers, artboards, vectors, text and images from Affinity 1–3 files; the embedded preview only as a warned fallback; AF.4 expands current `.af` fixtures and every-board round-trip validation); EPS Save and Save As keep an opened EPS as EPS with its page frame and complete editable VectorCraft document (2026-10-26; G9 import fidelity unchanged). Left: DWG (use DXF), PSD placement as layers, overprint read back from PDF, Affinity export, polish | 3–6 (existing scope; Affinity export unestimated) |
 | M3 | Paint & appearance (swatches, color, gradient, stroke, appearance, transparency, styles) | ✅ done (M3.7–M3.98): swatches, groups, libraries, tints, Lab spots and Registration; Eyedropper styles highlighted text only (atomic transparency rejection); Eyedropper reads visible locked and outside-isolation sources (#1251); Color Picker, Color panel, Color Guide, Color Themes, Edit Colors and Recolor Artwork (screen-bounded Edit chip list, #3416); gradients that follow every transform, the annotator, linked stops, freeform gradients, focal points, gradients on strokes and Expand; visible strokes when paint is added to inherited None/zero-width art (#1253); stroke geometry, arrowheads, dashes fitted to corners, stroke on type, width profiles and the Width tool (Shift-double-click enables adjoining adjustment in Width Point Edit), Scale Strokes and preview bounds; Appearance targeting, container appearance, target circles, Expand Appearance; knockout, isolation, blend accuracy, CMYK blending, overprint, Attributes, masks and clipping, Flatten Transparency; graphic styles, links and libraries; CSS library export preserves fractional linear and radial gradient stop positions. Left: freeform gradients in SVG/PDF, mixed spot/process gradients in SVG and PDF gradients mixing a spot color with RGB or Lab stops export as stops or process colors; PDF export writes dithered gradient fills with spot stops, and Perceptual spot gradients with RGB or Lab stops other than white or more than 4,096 stops on their curve, as images in process colors; confirm the Scale Strokes & Effects default | 4–8 |

docs/target-app-parity.md

@@ -1,6 +1,6 @@
 # Parity with Adobe Illustrator
 
-> **Last updated:** 2026-11-08 · **Change:** #3380 documentation review follow-up (deletion only): disconnected survivors of an ordinary single-contour path become selected sibling objects; existing multi-subpath paths and compound members stay intact. Segment endpoint highlighting remains open. Scores and estimates unchanged.
+> **Last updated:** 2026-11-08 · **Change:** #3380 deletion review follow-up: split survivors keep their original bounds-fitted gradient placement; documentation evidence, geometry assertions and function docs clarified. Existing multi-subpath paths and compound members stay intact. Segment endpoint highlighting remains open. Scores and estimates unchanged.
 > **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-07 · **Change:** minor (the canvas keeps selection outlines and anchors between frames; Indian-language hyphenation review and license allowlist, #4947; Stroke gradients: an arrowhead aligned to the tip is painted to the corners of its base, #5964; Drop Shadow and glow dialogs: spinner arrows, #5367, #5368; Stroke Weight Up and Down shortcuts, #5797; Hindi catalog and contributor loanword preferences; full wording review in progress; Properties in Edit Artboards: a Transform section with the reference point above the Artboards section, #5219; the Control bar's Stroke: and Opacity: links scrub their fields, #4088; an image zoomed in on is separated, colorized or proofed only where it shows (#4155); a document's first frame renders on the render worker, so opening a heavy file no longer freezes the window, #4155; Control bar Paragraph section with type selected, #5372; translating unchanged type reuses its glyph and character-stroke outlines; scores and estimates unchanged) · **Target:** Adobe Illustrator 2026 (30.x; public release notes through 30.7, August 2026)
 
 ## Feature submission evidence
@@ -32,6 +32,7 @@ Artboard Options forwards the active Artboard tool's Scale Artwork with Artboard
 
 | Date | Change | Summary |
 |---|---|---|
+| 2026-11-08 | minor | #3380, deletion only: pin bounds-fitted gradients before creating separate survivors; placed gradients and connected remainders retain their behavior. Regression coverage checks linear/radial fill and stroke vectors, rendered survivors and Undo/Redo. Scores and estimates unchanged. |
 | 2026-11-08 | minor | #3380 review follow-up: clarify deletion evidence and survivor selection, consolidate milestone notes, and retain the open endpoint-highlighting work. Behavior, scores and estimates unchanged. |
 | 2026-11-07 | minor | #3380 (deletion only): independent surviving path objects; transformed appearance, stacking, selection, cubic handles and Undo/Redo covered by `delete_path_pieces`; compound semantics retained. Endpoint highlighting remains open; scores and estimates unchanged. |
 | 2026-11-07 | minor | The canvas keeps selection outlines, anchors and handles between frames, so an idle frame with a large selection redraws them as one mesh; scores and estimates unchanged |
@@ -182,7 +183,7 @@ dominate; 3D, graphs and automation are specialist). They sum to 105. Feature de
 
 | Area | Weight | Done | Main gaps | One agent (h) | Kind |
 |---|---:|---:|---|---:|---|
-| Selection, transform & align tools | 6 | 85% | Direct Selection segment click/Delete corrected (#1278); deletion splits an ordinary contour into selected sibling objects (#3380, deletion only; `crates/engine/tests/it/delete_path_pieces.rs`); open-path anchor Delete keeps gaps; Select › Start Global Edit finds the paths, compound paths and symbol instances of the selected object's shape (Appearance, Size and artboard options) and gives an edit of one to all of them in proportion, as one undo step (#3521), and on a group the groups like it, an edit inside one reaching the same object in the others (#4939), and a Shift-click on a highlighted match leaves it out; the Align panel menu's Align to Glyph Bounds › Point Text and Area Text measure type by its glyphs' ink for Align and Distribute (#4231); remaining: Free Transform/Scale/Reflect along a rotated box, Global Edit of rotated copies, transform nuances (no-op anchor Align history regression-tested, #1180 follow-up) | 4–6 | estimated; Global Edit regression-tested (`crates/engine/src/tests/globaledit.rs`; Quick Action, menu label and Escape in `panels::properties::tests::start_global_edit_quick_action_and_escape`) |
+| Selection, transform & align tools | 6 | 85% | Direct Selection segment click/Delete corrected (#1278); deletion splits an ordinary contour into selected sibling objects with bounds-fitted gradients kept in place (#3380, deletion only; `crates/engine/tests/it/delete_path_pieces.rs`); open-path anchor Delete keeps gaps; Select › Start Global Edit finds the paths, compound paths and symbol instances of the selected object's shape (Appearance, Size and artboard options) and gives an edit of one to all of them in proportion, as one undo step (#3521), and on a group the groups like it, an edit inside one reaching the same object in the others (#4939), and a Shift-click on a highlighted match leaves it out; the Align panel menu's Align to Glyph Bounds › Point Text and Area Text measure type by its glyphs' ink for Align and Distribute (#4231); remaining: Free Transform/Scale/Reflect along a rotated box, Global Edit of rotated copies, transform nuances (no-op anchor Align history regression-tested, #1180 follow-up) | 4–6 | estimated; Global Edit regression-tested (`crates/engine/src/tests/globaledit.rs`; Quick Action, menu label and Escape in `panels::properties::tests::start_global_edit_quick_action_and_escape`) |
 | Drawing tools (Pen, Curvature, Pencil, shapes, Shaper) | 7 | 85% | Shaper construction widget, Pencil/Pen nuances, Blob Brush options, Touch Type, Dimension tool; see [ui-parity.md](ui-parity.md) | 8–13 | estimated; Curvature point display regression-tested (#1236, in part); Polygon/Star exact-size count persistence regression-covered; Live Corners' Relative rounding done (#3091), score unchanged |
 | Path operations, Pathfinder, Shape Builder, Live Paint | 5 | 80% | Shape Builder on the reporter's file (#937: art past 4,096 segments is cut by lines again; unconfirmed on the file itself); gap detection shares Live Paint’s finder, with a 72 pt custom cap and the existing options; Live Paint Gap Options | 4–8 | estimated; Shape Builder Gap Detection shares Live Paint’s spatial gap finder and temporary merge bridges (#2526); Custom is capped at 72 pt in the existing options dialog (lowered from 86%: open issues); compound attributes regression-tested (#1197); single-result source names survive SVG export/import (#1293), with [SVG ID semantics](https://www.w3.org/TR/SVG2/struct.html#IDAttribute) and original-shape tests; Simplify component selection and preview regression-tested (#1272); Simplify of a Direct Selection part of a path regression-tested (`tests/simplify_part.rs`); Divide open-cutting-path geometry and appearance regression-tested (#1307); the Shape Builder's edge-source grid is bounded in memory and files a segment once per cell (`planar.rs` test `rect_index_holds_a_bounded_number_of_references`); live compound shapes (Make, Alt-click, member Shape Modes, Release, Expand, saved and exported) regression-tested (#4522) |
 | Colour, swatches, gradients, patterns, mesh, recolor | 7 | 92% | 30.0's gradient additions are done (dither, perceptual blending, presets); freeform gradients in SVG/PDF, mixed spot/process gradients in SVG, PDF gradients mixing a spot color with RGB or Lab stops, and dithered spot gradient fills and Perceptual spot gradients with RGB or Lab stops other than white or more than 4,096 stops on their curve, which PDF export writes as images in process colors | 4–7 | estimated; Recolor model selection is available through the engine and MCP (#2520), and the dialog's color sliders (HSB, RGB, CMYK, Lab, Tint for a spot color) edit the selected row's new color in its mode, and the Edit tab's Global Adjust sliders (Saturation, Brightness, Temperature, Luminosity, -100% to 100%) change every recolored color at once (lowered from 96%: target moved); unpainted zero-width stroke restoration fixed (#1253), score and hours unchanged; Eyedropper source reads regression-tested (#1251); screen-bounded Recolor Edit chip list (#3416), score and hours unchanged |
@@ -519,7 +520,7 @@ since 2026-10-01.
 
 ## Evidence: what ships today, by area
 
-- **Selection — disconnected path deletion (#3380, deletion only):** Clear/Delete and Cut turn surviving disconnected pieces of an ordinary contour into independent selected sibling objects. The first keeps its ID; all keep appearance, baked transforms and stacking order. Existing multi-subpath paths and explicit compound members retain their semantics. Original synthetic regressions in `crates/engine/tests/it/delete_path_pieces.rs` cover styled/transformed rectangles, cubic handles, compound preservation and atomic Undo/Redo; `crates/ui-egui/src/tests/removeanchors.rs` covers real-frame Delete/Backspace and a second Delete removing all survivors. Segment endpoint highlighting remains open. Scores and hours unchanged.
+- **Selection — disconnected path deletion (#3380, deletion only):** Clear/Delete and Cut turn surviving disconnected pieces of an ordinary contour into independent selected sibling objects. The first keeps its ID; all keep appearance, baked transforms and stacking order. `deletion_split_preserves_gradient_placement` compares rendered survivors with the original paint space and checks linear/radial fill/stroke vectors, already placed gradients and atomic Undo/Redo; connected remainders keep automatic fitting. Existing multi-subpath paths and explicit compound members retain their semantics. Original synthetic regressions in `crates/engine/tests/it/delete_path_pieces.rs` cover styled/transformed rectangles, cubic handles, compound preservation and atomic Undo/Redo; `crates/ui-egui/src/tests/removeanchors.rs` covers real-frame Delete/Backspace and a second Delete removing all survivors. Segment endpoint highlighting remains open. Scores and hours unchanged.
 
 - 3D lighting presets: `crates/effects/src/lighting_presets.rs`, `crates/engine/src/cmd/effectcmd/lighting_presets_tests.rs` and the pointer tests in `crates/ui-egui/src/dialogs/revolve/tests.rs` cover recognition, atomic targeting, native round trips, preview, Cancel, reset and Undo.
 

docs/ui-parity.md

@@ -1,6 +1,6 @@
 # UI and interaction parity
 
-> **Last updated:** 2026-11-08 · **Change:** #3380 documentation review follow-up (deletion only): disconnected survivors of an ordinary single-contour path become selected sibling objects; existing multi-subpath paths and compound members stay intact. Segment endpoint highlighting remains open. Scores and estimates unchanged.
+> **Last updated:** 2026-11-08 · **Change:** #3380 deletion review follow-up: split survivors keep their original bounds-fitted gradient placement; documentation evidence, geometry assertions and function docs clarified. Existing multi-subpath paths and compound members stay intact. Segment endpoint highlighting remains open. Scores and estimates unchanged.
 > **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-06 · **Change:** minor (Drop Shadow and glow dialogs: spinner arrows, #5367, #5368; Stroke Weight Up and Down shortcuts, #5797; Layers: Rename (`ui.rename`) opens the name field of the selected layer, group or object, #5324; Properties in Edit Artboards: Transform section above the Artboards section, #5219; scrubby labels: the Control bar's Stroke: and Opacity: links and the Properties panel's Stroke link scrub their fields, #4088; Properties: Quick Actions has Repeat Options for one selected repeat, #5181; Direct Selection: Shift-click picks several blend spine points, which drag together, #5285; Direct Selection: Cmd/Ctrl held lends the Selection tool and shows its bounding box, #3901; Join tool trims two crossing open paths and joins them at the crossing, #5844; Control bar: Paragraph: link and Align left/center/right while type is selected, #5372; shape tools: a press on the selection's centre point moves it and one in the rotate zone outside a box corner turns it, #5477; scores and estimates unchanged) · **Target:** Adobe Illustrator 2026 (30.x; Units › East Asian Type acts, with Q and Ha units; scores unchanged)
 
 ## Feature submission evidence
@@ -40,6 +40,7 @@ Artboard Options forwards the active Artboard tool's Scale Artwork with Artboard
 
 | Date | Change | Summary |
 |---|---|---|
+| 2026-11-08 | minor | #3380, deletion only: pin bounds-fitted gradients before creating separate survivors; placed gradients and connected remainders retain their behavior. Regression coverage checks linear/radial fill and stroke vectors, rendered survivors and Undo/Redo. Scores and estimates unchanged. |
 | 2026-11-08 | minor | #3380 review follow-up: clarify deletion evidence and survivor selection, consolidate milestone notes, and retain the open endpoint-highlighting work. Behavior, scores and estimates unchanged. |
 | 2026-11-07 | minor | #3380 (deletion only): independent surviving path objects; transformed appearance, stacking, selection, cubic handles and Undo/Redo covered by `delete_path_pieces`; compound semantics retained. Endpoint highlighting remains open; scores and estimates unchanged. |
 | 2026-10-30 | minor | Home screen: welcome, New / Open and Community are centred and the large Discord button uses the theme accent, part of #4684; scores and estimates unchanged (estimated) |
@@ -170,7 +171,7 @@ tools, never checked side by side) isn't captured row by row.
 
 | Behaviour | Status | Notes |
 |---|---|---|
-| Deleting segments or anchors that disconnect an ordinary path creates independent selected objects | done | #3380, deletion only: first piece retains its ID, styles and transforms carry over in sibling order, and one Undo restores the original. Existing multi-subpath paths and compound members stay intact. `delete_path_pieces` covers transformed/styled rectangles, cubic handles and Undo/Redo. Endpoint highlighting remains open. |
+| Deleting segments or anchors that disconnect an ordinary path creates independent selected objects | done | #3380, deletion only: first piece retains its ID, styles and transforms carry over in sibling order, bounds-fitted gradients keep their original placement, and one Undo restores the original. Existing multi-subpath paths and compound members stay intact. `delete_path_pieces` covers transformed/styled rectangles, cubic handles and Undo/Redo. Endpoint highlighting remains open. |
 | Click/Shift-click anchors; marquee toggles with Shift | done | #483 |
 | Align selected anchors to their bounds or the artboard; repeating an alignment that moves nothing keeps Undo, Redo and saved state | done | #1180 follow-up; engine regressions include rounding-only moves and unchanged handles; #1641 (fixes #1636): Align and Distribute act on the anchors selected with Direct Selection, the points of one path aligning to each other and Distribute spacing them |
 | Align selected anchors to a key anchor | missing | #1636 |