Fix #5188: the docs say how other corners are added after the first pick

docs/target-app-parity.md

@@ -31,6 +31,7 @@ Artboard Options forwards the active Artboard tool's Scale Artwork with Artboard
 
 | Date | Change | Summary |
 |---|---|---|
+| 2026-11-07 | minor | Live Corners: with Direct Selection, while every corner of a path is selected (the path selected whole), a Shift-click on a corner widget picks that corner alone, as the first click of "click one widget, then Shift-click the others" does, instead of deselecting it and hiding its widget (#5188). The other corners' widgets then hide: a Shift-click on another corner's anchor adds that corner and shows its widget, and a Shift-click on a showing widget deselects its corner. Adding a corner by Shift-clicking its widget while it is hidden stays open (#1232). Test: `corners::tests::a_shift_click_on_a_widget_of_a_whole_path_picks_its_corner`. Scores and estimates unchanged. |
 | 2026-11-07 | minor | Live Corners: with Direct Selection, while every corner of a path is selected (the path selected whole), a Shift-click on a corner widget picks that corner alone, as the first click of "click one widget, then Shift-click the others" does, instead of deselecting it and hiding its widget (#5188). Once some corners are picked, Shift-click still adds or removes one. Test: `corners::tests::a_shift_click_on_a_widget_of_a_whole_path_picks_its_corner`. Scores and estimates unchanged. |
 | 2026-11-03 | minor | Docked Tools stays between left-side panels and the canvas; redocking accepts canvas and window edges. Requested layout choice; scores and estimates unchanged. |
 | 2026-11-02 | minor | Selection QoL: saved marquee modes, screen drag direction with a 3 px dead zone, and translated mode/E feedback (#5313); VectorCraft addition, scores and estimates unchanged. |
@@ -559,7 +560,7 @@ since 2026-10-01.
 - **Pattern-only backquote drags:** With Selection move, bounding-box scale or rotate, or the Rotate, Reflect, Scale or Shear tool, backquote held at mouse release applies the drag matrix to selected pattern paint while object geometry stays in place. The key may be pressed after mouse press; if released before the mouse button, the drag commits as an ordinary transform. Objects without pattern paint stay still; stroke-only patterns and patterned objects in mixed selections take the same matrix. Regression tests: `backquote_move_uses_release_state_and_one_commit` and `backquote_box_scale_and_rotate_use_pattern_matrix_at_release` in `select/tests.rs`, `backquote_drag_previews_and_commits_pattern_only_for_each_transform_tool` in `xform/transform.rs`, `selection_backquote_drag_changes_pattern_fill_and_stroke_without_moving_mixed_art` and `selection_backquote_drag_changes_stroke_only_pattern` in `tests/pattern.rs`, `egui_backtick_drag_uses_key_state_at_release` in `canvas/tests.rs`, and `synthetic_pointer_backquote_keeps_solid_object_in_place` in `control/tests.rs`. Scores and hours unchanged.
 - **Existing-guide Escape cancellation (G1):** Escape clears a pending guide press or drag through Selection and Direct/Group Selection, cancelling a begun preview. Eight app-input regressions cover both axes, move/copy, temporary selection-tool borrowing from idle Pen, preselected-guide document/interaction-start selection and Undo/Redo/saved-state preservation, later on-canvas motion/release, Shift-press cancellation, and ordinary-release/Enter/idle controls. Historical focused checks on `8ab574b7` recorded five expected RED failures with three passing controls, then all eight GREEN tests and the Direct Selection Escape control passed. All nine also passed in current full CI. A full CI retry on the five-unit combined source at `a0671777` passed all seven stages with 6,613 test outcomes on 2026-10-14. An earlier full-CI run on the identical source panicked in the randomized `ai_mutated_save_never_panics` test; the cause remains unresolved. This five-fix batch does not claim to repair that failure. The original 1280×960 headless app capture from `b076025a` was reviewed for one vertical Selection guide after Escape; source review found its scene unchanged on `a0671777`. Scores and hours unchanged.
 - **Escape in more tool drags:** Escape during an Anchor Point drag, a Mesh tool drag, a Direct Selection drag of a mesh point, a corner widget or the brackets of type on a path, or a Shape Builder drag cancels it: the art goes back to how the press found it, no undo step is added, the release does nothing, and the tool stays chosen. Escape during a Measure tool drag brings back the measurement before it. Regression tests: `escape_cancels_*` in `draw2/anchor/tests.rs`, `meshedit.rs`, `direct/tests.rs`, `builder/tests.rs` and `xform/measure.rs`, and `escape_cancels_an_anchor_point_mesh_shape_builder_or_measure_drag` in `tests/toolescape.rs`.
-- **Shift-click on corner widgets (#5188):** with Direct Selection, when every corner of a path is selected (the path selected whole), a Shift-click on a corner widget picks that corner alone, so the next drag rounds just it; once some corners are picked, Shift-click adds or removes a corner as on its anchor. Corner widgets are chosen by clicking one and Shift-clicking the others ([Logos By Nick, rounded corners in Illustrator](https://logosbynick.com/?p=15787)). Test: `corners::tests::a_shift_click_on_a_widget_of_a_whole_path_picks_its_corner`.
+- **Shift-click on corner widgets (#5188):** with Direct Selection, when every corner of a path is selected (the path selected whole), a Shift-click on a corner widget picks that corner alone, so the next drag rounds just it. The other corners' widgets then hide; a Shift-click on another corner's anchor adds that corner and shows its widget, and a Shift-click on a showing widget deselects its corner. Adding a corner by Shift-clicking its widget while it is hidden stays open (#1232). Corner widgets are chosen by clicking one and Shift-clicking the others ([Logos By Nick, rounded corners in Illustrator](https://logosbynick.com/?p=15787)). Test: `corners::tests::a_shift_click_on_a_widget_of_a_whole_path_picks_its_corner`.
 - **TIFF in screen and asset export:** both format menus expose the existing TIFF encoder and Format Settings. Headless UI regressions choose TIFF and check scaled dimensions, artboard selection, filenames, encoding options, saved settings and collected-asset output. Public reference: [Export for Screens](https://helpx.adobe.com/illustrator/desktop/save-and-export/export-files-to-different-formats/export-for-screens.html), updated 2026-09-28, lists TIFF for both artboards and assets. Adobe staff [confirmed support in 30.2.1](https://illustrator.uservoice.com/forums/333657-illustrator-desktop-feature-requests/suggestions/49081034-add-tiff-format-into-export-for-screens-assets-d) on 2026-02-19; the older 2025 Collect assets guide omits TIFF.
 - **Export for Screens of the selected artboards:** while the Artboard tool is in use, File › Export › Export for Screens… (`file.exportForScreens`) opens with the artboards the tool has selected checked on its Artboards tab, and Export Artboard writes only those. Shift-clicks on the canvas, or Shift- or Ctrl/Cmd-clicks on the Artboards panel's rows, select several. The other fields show the settings the document last exported with. With another tool in use, the dialog takes its artboard choice from those settings too. Public reference: [Export selected artboards](https://helpx.adobe.com/illustrator/desktop/create-manage-artboards/organize-manage-artboards/export-artboards.html).
 

docs/ui-parity.md

@@ -1,6 +1,6 @@
 # UI and interaction parity
 
-> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-06 · **Change:** minor (Selection QoL: marquee modes and visible feedback, #5313; 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)
+> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-07 · **Change:** minor (Live Corners: with every corner selected, a Shift-click on a corner widget picks that corner, #5188; 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
 
@@ -191,7 +191,7 @@ tools, never checked side by side) isn't captured row by row.
 | Alt with Direct Selection makes a marquee Group Selection's for the drag: it selects every path it touches, whole (Shift toggles them), and the Group Selection pointer stays until the release | done | #4890 |
 | Direct Selection: a click on a selected object's centre point (Attributes › Show Center) selects the object whole, and a drag from it moves the object in one undo step | done | #4891 |
 | Escape cancels a Direct Selection drag | done | #1803 (#1743) |
-| Live Corners widgets (radius readout, Alt-click cycles kind, double-click the Corners dialog) | done | a Direct Selection click on a widget selects its corner (#1239); a press-and-drag on a widget of a path selected whole still rounds every corner (#908), and adding widgets to the selection by Shift-click (#1232) is missing; the bounding box hides while a widget is dragged with the Selection tool (#1229); a round corner next to a curved side curves smoothly instead of sticking out of the shape (#1512); a corner rounds until its cut reaches its neighbours' cuts, so one corner of a square alone reaches the whole side (#2332) |
+| Live Corners widgets (radius readout, Alt-click cycles kind, double-click the Corners dialog) | done | a Direct Selection click on a widget selects its corner (#1239), and with every corner selected a Shift-click on a widget picks that corner alone instead of deselecting it (#5188); a press-and-drag on a widget of a path selected whole still rounds every corner (#908), and adding widgets to the selection by Shift-click (#1232) is missing; the bounding box hides while a widget is dragged with the Selection tool (#1229); a round corner next to a curved side curves smoothly instead of sticking out of the shape (#1512); a corner rounds until its cut reaches its neighbours' cuts, so one corner of a square alone reaches the whole side (#2332) |
 | Corners between curved sides (#1144), Relative rounding | done | #1144 closed; Relative rounding in the Corners dialog (Relative / Absolute, radius as a percentage of each corner's maximum, kept as the shape is resized; `object.setLiveShape` `relativeRadii`, #3091, `tests_livecorners::relative_corner_rounding_keeps_fraction_on_resize`) |
 | Pie widgets on a live ellipse: drag one to set Pie Start or End Angle, double-click one to make the ellipse whole | done | Selection tool, with the bounding box showing |
 | A shape just drawn shows its bounding box and Live Shape widgets with the shape tool still active, and the selection can be moved and turned without switching tools | done | #5477: Rectangle, Rounded Rectangle, Ellipse, Polygon and Star keep the selection's bounding box, corner widgets and pie widgets on show while they draw nothing; a drag on a corner or pie widget adjusts it (arrows step the corner kind, Escape cancels), a press on the selection's centre point (Attributes › Show Center) moves the selection — the Selection tool's move arrow, snapping and Alt copy — a press just outside a corner of the box turns it about the centre (the Selection tool's rotate zone and cursor), and a press anywhere else draws (so a second shape drawn from the first one's centre moves the first: press elsewhere or deselect first). Public descriptions: [Live Shapes](https://helpx.adobe.com/illustrator/using/live-shapes.html) (live shapes adjust without switching tools) and [CreativePro, Working with Live Shapes](https://creativepro.com/?p=23921) (a widget shows in every corner on release; drag one toward the centre to round). The bounding-box handles show but scale only with the Selection tool, so a press on a corner still starts a new shape there; double-clicking a widget opens nothing with a shape tool. Tests `a_shape_tool_drags_the_selected_shapes_widgets` and `a_shape_tool_moves_the_selection_by_its_centre_point_and_turns_it_from_a_corner` |
@@ -480,6 +480,7 @@ separate. Scores and hours unchanged. [Behavior and command details](development
 
 | Date | Change | Summary |
 |---|---|---|
+| 2026-11-07 | minor | Live Corners: with Direct Selection, while every corner of a path is selected, a Shift-click on a corner widget picks that corner alone instead of deselecting it (#5188); adding a hidden corner's widget by Shift-click stays open (#1232); scores and estimates unchanged |
 | 2026-11-06 | minor | Keyboard shortcuts: Cmd/Ctrl+Alt+. and Cmd/Ctrl+Alt+, (Stroke Weight Up and Down) step each selected stroke's weight, or the next object drawn's (#5797); scores and estimates unchanged |
 | 2026-11-06 | minor | Properties: Quick Actions has Repeat Options for one selected radial, grid or mirror repeat, opening Object › Repeat › Options with its values (#5181); scores and estimates unchanged |
 | 2026-11-06 | minor | Control bar: with type selected, a Paragraph: link (the Paragraph panel in a popover) and the Align left, Align center and Align right buttons follow the Character controls; the bar leaves them out from its right end when short of room, after X/Y/W/H and the Align buttons (#5372); scores and estimates unchanged |