diff --git a/crates/ui-egui/src/chrome/control_bar.rs b/crates/ui-egui/src/chrome/control_bar.rs
index 88cc6dde0..9afbe838e 100644
--- a/crates/ui-egui/src/chrome/control_bar.rs
+++ b/crates/ui-egui/src/chrome/control_bar.rs
@@ -338,7 +338,8 @@ pub fn control_bar(app: &mut VectorcraftApp, ui: &mut Ui) {
                     ui.add_space(4.0);
                     ui.separator();
                 }
-                if ui.link(egui::RichText::new(tl!("Opacity:")).size(12.0).color(t.text).underline()).clicked() {
+                // A click opens the Transparency panel; a drag scrubs the field (#4088).
+                if crate::scrub::link_label(ui, egui::RichText::new(tl!("Opacity:")).size(12.0).color(t.text).underline()).clicked() {
                     app.ui.open_panel = Some("transparency".into());
                 }
                 if let Some(o) = widgets::plain_field(ui, "cb-opacity", opacity as f64 * 100.0, "%", 0, 56.0)
diff --git a/crates/ui-egui/src/panels/stroke.rs b/crates/ui-egui/src/panels/stroke.rs
index fb9269fcf..f6ece0ac5 100644
--- a/crates/ui-egui/src/panels/stroke.rs
+++ b/crates/ui-egui/src/panels/stroke.rs
@@ -137,10 +137,12 @@ pub(crate) fn weight_field(app: &mut VectorcraftApp, ui: &mut Ui, id: &str, weig
 }
 
 /// The underlined Stroke link (`label`: the Control bar's "Stroke:", the Properties panel's
-/// "Stroke"): a click toggles the Stroke panel in a popover under it.
+/// "Stroke"): a click toggles the Stroke panel in a popover under it, and a drag scrubs the weight
+/// field after it ([`crate::scrub`]).
 pub(crate) fn link(app: &mut VectorcraftApp, ui: &mut Ui, label: &str) {
     let t = Tokens::get(ui.ctx());
-    let resp = ui.link(egui::RichText::new(label).size(12.0).color(t.text).underline()).on_hover_text(tl!("Stroke options"));
+    // A drag on it scrubs the weight field after it (#4088).
+    let resp = crate::scrub::link_label(ui, egui::RichText::new(label).size(12.0).color(t.text).underline()).on_hover_text(tl!("Stroke options"));
     widgets::popover(&resp, resp.clicked(), |ui| {
         ui.set_width(260.0);
         show(app, ui);
diff --git a/crates/ui-egui/src/scrub.rs b/crates/ui-egui/src/scrub.rs
index 832b82870..70ceb5060 100644
--- a/crates/ui-egui/src/scrub.rs
+++ b/crates/ui-egui/src/scrub.rs
@@ -1,8 +1,10 @@
 //! Scrubbing numeric fields (#400, beyond Illustrator; Photoshop's scrubby labels): a horizontal
 //! drag on a numeric field's label (`W:`, `Opacity:`, the Character panel's size icon) steps the
 //! field's value by one unit every [`PX_PER_STEP`] points, ten with Shift and a tenth with
-//! Ctrl/Cmd, as the arrow keys step a focused field; a click on the label focuses the field. The
-//! text box itself never scrubs, and a field without a label doesn't.
+//! Ctrl/Cmd, as the arrow keys step a focused field; a click on the label focuses the field. A
+//! label that is a link (the Control bar's `Stroke:` and `Opacity:`, which open their panels;
+//! #4088) scrubs its field the same way, and a click on it still follows the link. The text box
+//! itself never scrubs, and a field without a label doesn't.
 //!
 //! The panels apply each value the drag passes as they apply a typed one, so the art follows the
 //! drag live; the app holds an undo group open meanwhile ([`begin_frame`], [`end_frame`]), so the
@@ -113,24 +115,44 @@ pub(crate) fn end_frame(app: &mut VectorcraftApp, ctx: &Context) {
 struct Label {
     rect: Rect,
     pass: u64,
+    /// The label is a link, this widget: a click follows it instead of focusing the field.
+    link: Option<Id>,
 }
 
 /// Note the label (text or icon) drawn at `rect`: a numeric field drawn right after it on the
 /// same line takes it as its label, which scrubs the field.
 pub(crate) fn note_label(ui: &Ui, rect: Rect) {
+    note(ui, rect, None);
+}
+
+/// A link that labels the numeric field drawn after it (it opens a panel when clicked): a drag on
+/// it scrubs the field, and a click stays the link's. Its text can't be selected, which a drag
+/// across it would otherwise do.
+pub(crate) fn link_label(ui: &mut Ui, text: egui::RichText) -> Response {
+    let link = ui
+        .scope(|ui| {
+            ui.style_mut().interaction.selectable_labels = false;
+            ui.link(text)
+        })
+        .inner;
+    note(ui, link.rect, Some(link.id));
+    link
+}
+
+fn note(ui: &Ui, rect: Rect, link: Option<Id>) {
     let pass = ui.ctx().cumulative_pass_nr();
-    ui.data_mut(|d| d.insert_temp(label_id(), Label { rect, pass }));
+    ui.data_mut(|d| d.insert_temp(label_id(), Label { rect, pass, link }));
 }
 
 /// The label noted just before the field at `field`, on its line.
-fn take_label(ui: &Ui, field: Rect) -> Option<Rect> {
+fn take_label(ui: &Ui, field: Rect) -> Option<Label> {
     let l = ui.data_mut(|d| {
         let l = d.get_temp::<Label>(label_id());
         d.remove::<Label>(label_id());
         l
     })?;
     let gap = field.left() - l.rect.right();
-    (l.pass == ui.ctx().cumulative_pass_nr() && (-1.0..=LABEL_GAP).contains(&gap) && field.y_range().contains(l.rect.center().y)).then_some(l.rect)
+    (l.pass == ui.ctx().cumulative_pass_nr() && (-1.0..=LABEL_GAP).contains(&gap) && field.y_range().contains(l.rect.center().y)).then_some(l)
 }
 
 /// Scrub numeric field `field`, its box at `rect`, showing `text`: `value` in its units, rounded
@@ -144,14 +166,20 @@ pub(crate) fn field(ui: &Ui, field: Id, rect: Rect, text: &str, value: Option<f6
     if !enabled(ui.ctx()) || !ui.is_enabled() {
         return None;
     }
-    // On top of the label, which may sense clicks itself (selectable text).
-    let resp = ui.interact(label, field.with("scrub-label"), Sense::click_and_drag());
-    drag(ui, &resp, field, text, value, decimals).map(|v| v.max(*bounds.start()).min(*bounds.end()))
+    // On top of the label, which may sense clicks itself (selectable text). A link senses drags
+    // too and keeps its clicks (and its pointing hand while hovered): a widget laid over it would
+    // take them.
+    let resp = match label.link {
+        Some(link) => ui.interact(label.rect, link, Sense::drag()),
+        None => ui.interact(label.rect, field.with("scrub-label"), Sense::click_and_drag()),
+    };
+    drag(ui, &resp, field, text, value, decimals, label.link.is_some()).map(|v| v.max(*bounds.start()).min(*bounds.end()))
 }
 
-/// What a drag on `resp`, the label of field `field`, does this frame.
-fn drag(ui: &Ui, resp: &Response, field: Id, text: &str, value: f64, decimals: i32) -> Option<f64> {
-    if resp.hovered() || resp.dragged() {
+/// What a drag on `resp`, the label of field `field`, does this frame (`link`: the label is a link,
+/// which a click follows, so a press held without stepping doesn't focus the field either).
+fn drag(ui: &Ui, resp: &Response, field: Id, text: &str, value: f64, decimals: i32, link: bool) -> Option<f64> {
+    if (resp.hovered() && !link) || resp.dragged() {
         ui.ctx().set_cursor_icon(CursorIcon::ResizeHorizontal);
     }
     if resp.clicked() {
@@ -174,7 +202,7 @@ fn drag(ui: &Ui, resp: &Response, field: Id, text: &str, value: f64, decimals: i
         s.moved.then_some(s.start)
     } else if resp.drag_stopped() {
         // Held without stepping: a slow click.
-        if !s.moved {
+        if !s.moved && !link {
             crate::widgets::focus_field(ui, field, text);
         }
         None
diff --git a/crates/ui-egui/src/tests/scrub.rs b/crates/ui-egui/src/tests/scrub.rs
index 21091350f..737112aa9 100644
--- a/crates/ui-egui/src/tests/scrub.rs
+++ b/crates/ui-egui/src/tests/scrub.rs
@@ -365,3 +365,64 @@ fn a_scrub_closes_its_group_in_its_own_document_after_a_switch() {
     assert_eq!(second.history.undo.len(), undo + 1, "one undo step for the drag");
     assert!(app.session.documents()[0].undo_group.is_some(), "the active document's group stays open");
 }
+
+/// Press at `at`, move by `dx` in four frames and release, in the app.
+fn drag_at(app: &mut VectorcraftApp, ctx: &egui::Context, at: Pos2, dx: f32) {
+    let button = |pos, pressed| Event::PointerButton { pos, button: PointerButton::Primary, pressed, modifiers: Modifiers::NONE };
+    app_frame(app, ctx, vec![Event::PointerMoved(at)], "");
+    app_frame(app, ctx, vec![button(at, true)], "");
+    for i in 1..=4 {
+        app_frame(app, ctx, vec![Event::PointerMoved(at + vec2(dx * i as f32 / 4.0, 0.0))], "");
+    }
+    app_frame(app, ctx, vec![button(at + vec2(dx, 0.0), false)], "");
+    app_frame(app, ctx, vec![], "");
+}
+
+/// #4088: the Control bar's "Stroke:" and "Opacity:" are links to their panels, and they scrub the
+/// field after them as the other labels do: a drag steps the weight or the opacity in one undo
+/// step, while a click still follows the link and leaves the value and the keyboard focus alone.
+#[test]
+fn the_control_bars_stroke_and_opacity_links_scrub_their_fields() {
+    let (mut app, ctx) = app_with_rect();
+    app.ui.control_bar = true;
+    let opacity = |app: &VectorcraftApp| crate::panels::current_transparency(app).unwrap().0;
+    let weight = |app: &VectorcraftApp| crate::panels::current_stroke(app).unwrap().width;
+    let find = |app: &mut VectorcraftApp, text: &str| {
+        let mut at = None;
+        for _ in 0..4 {
+            at = app_frame(app, &ctx, vec![], text);
+        }
+        at.unwrap_or_else(|| panic!("{text} is shown")).center()
+    };
+    let (w0, undo) = (weight(&app), undo_len(&app));
+
+    // A click on a link opens its panel: no value changes and no field takes the keyboard.
+    let (o, w) = (opacity(&app), weight(&app));
+    let at = find(&mut app, "Opacity:");
+    let button = |pressed| Event::PointerButton { pos: at, button: PointerButton::Primary, pressed, modifiers: Modifiers::NONE };
+    app_frame(&mut app, &ctx, vec![Event::PointerMoved(at), button(true)], "");
+    app_frame(&mut app, &ctx, vec![button(false)], "");
+    assert_eq!(app.ui.open_panel.as_deref(), Some("transparency"), "the link opens the Transparency panel");
+    assert_eq!((opacity(&app), weight(&app)), (o, w));
+    assert!(ctx.memory(|m| m.focused()).is_none(), "no field took the focus");
+
+    // Hovering the link keeps its pointing hand.
+    let at = find(&mut app, "Opacity:");
+    let screen_rect = Some(Rect::from_min_size(Pos2::ZERO, vec2(1600.0, 900.0)));
+    let mut out = ctx.run_ui(egui::RawInput { events: vec![Event::PointerMoved(at)], screen_rect, ..Default::default() }, |ui| {
+        app.logic(ui.ctx());
+        app.ui(ui);
+    });
+    out.textures_delta.clear();
+    assert_ne!(out.platform_output.cursor_icon, CursorIcon::ResizeHorizontal, "the link keeps its cursor while hovered");
+
+    drag_at(&mut app, &ctx, at, -40.0);
+    // 40 points left: 40 / PX_PER_STEP steps of 1% down from 100%.
+    assert!((opacity(&app) as f64 - (1.0 - 40.0 / scrub::PX_PER_STEP as f64 / 100.0)).abs() < 1e-4, "{}", opacity(&app));
+    assert_eq!(undo_len(&app), undo + 1, "one undo step");
+
+    let at = find(&mut app, "Stroke:");
+    drag_at(&mut app, &ctx, at, 40.0);
+    assert!((weight(&app) - (w0 + 40.0 / scrub::PX_PER_STEP as f64)).abs() < 1e-6, "{}", weight(&app));
+    assert_eq!(undo_len(&app), undo + 2, "one undo step");
+}
diff --git a/docs/target-app-parity.md b/docs/target-app-parity.md
index 0c66b0644..741f2373c 100644
--- a/docs/target-app-parity.md
+++ b/docs/target-app-parity.md
@@ -1,6 +1,6 @@
 # Parity with Adobe Illustrator
 
-> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-05 · **Change:** minor (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, #4155; Control bar Paragraph section with type selected, #5372; scores and estimates unchanged) · **Target:** Adobe Illustrator 2026 (30.x; public release notes through 30.7, August 2026)
+> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-06 · **Change:** minor (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); scores and estimates unchanged; 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; scores and estimates unchanged) · **Target:** Adobe Illustrator 2026 (30.x; public release notes through 30.7, August 2026)
 
 ## Feature submission evidence
 
@@ -717,7 +717,7 @@ Moved from the ROADMAP's "Shipped so far" on 2026-10-10. Update it when a featur
   - A plain step of a number field (Up/Down or a wheel notch) goes to the next whole unit in its direction and a Ctrl/Cmd step goes to the next tenth, so 5.1 mm steps up to 6 mm and down to 5 mm (#2881). A Shift step adds or takes ten and keeps the fraction.
   - In the number, text and color fields of the panels and the Control bar, Shift+Enter (Shift+Return) applies the value and keeps the field active with its value selected; a text box of several lines takes it as a line break. In a dialog, Shift+Enter applies the value and confirms the dialog, as Enter does.
   - The Pattern Options panel's Name field and the name fields that a double-click opens in the Layers, Artboards and Asset Export panels take Shift+Enter (Shift+Return) the same way: it applies the name and keeps the field active with the name selected.
-  - Scrubby labels (#400, beyond Illustrator, as in Photoshop): dragging a numeric field's label left or right (the ↔ cursor shows over it) steps the value one unit every 2 points (Shift: ten, Ctrl/Cmd: a tenth; counts stay whole), in the field's unit and within its limits, applied live as the art follows; the whole drag is one undo step and Escape puts the value back. A click on the label focuses the field; the text box itself never scrubs, and a field with no label doesn't. Text labels before a field (Transform, Properties, Control bar, Stroke, Transparency, form rows in dialogs) and the Character and Paragraph panels' icons act as labels. Preferences › General › Scrub Numeric Fields by Dragging (on by default) turns it off.
+  - Scrubby labels (#400, beyond Illustrator, as in Photoshop): dragging a numeric field's label left or right (the ↔ cursor shows over it) steps the value one unit every 2 points (Shift: ten, Ctrl/Cmd: a tenth; counts stay whole), in the field's unit and within its limits, applied live as the art follows; the whole drag is one undo step and Escape puts the value back. A click on the label focuses the field; the text box itself never scrubs, and a field with no label doesn't. Text labels before a field (Transform, Properties, Control bar, Stroke, Transparency, form rows in dialogs) and the Character and Paragraph panels' icons act as labels, and so do the links that label a field (the Control bar's Stroke: and Opacity:, the Properties panel's Stroke), which a click still follows to their panel (#4088). Preferences › General › Scrub Numeric Fields by Dragging (on by default) turns it off.
   - In the Transform panel, the Properties panel's Transform section and the Control bar, Alt+Enter (Option+Return) applies a value to a copy of the selection and selects the copy, in one undo step. With anchor points selected with Direct Selection it applies the value to them, as Enter does. Ctrl/Cmd+Enter in W or H applies the value and scales the selection proportionally with the link off. With the Artboard tool, it scales the active artboard proportionally. A percentage typed alone in W or H (`50%`) is that share of the size the field shows, and the link and Ctrl/Cmd+Enter keep the proportions as with a length (#2401).
   - The Control bar's underlined Transform link opens the Transform panel in a popover under it (reference point, X/Y/W/H, Rotate and Shear with their icons and angle presets, flips, shape properties, Scale Corners and Scale Strokes & Effects), as its Stroke link does the Stroke panel; X/Y/W/H also show inline while the bar has room. The reference point locator is nine squares, the outer eight joined around the box.
   - In isolation mode the Control bar has an Exit Isolation Mode button (`object.exitIsolation`), except while a pattern is edited. Outside isolation mode, with one group, compound path, path, image, mesh or placed file selected, it has an Isolate Selected Object button (`object.isolate`), which also isolates a path inside a group that Direct Selection selected.
@@ -1692,6 +1692,7 @@ Edit › Copy and Cut put the selected ruler guides on the clipboard, with the s
 
 | Date | Change | Summary |
 |---|---|---|
+| 2026-11-06 | minor | Scrubby labels: the Control bar's Stroke: and Opacity: links and the Properties panel's Stroke link scrub their fields; a click still opens the panel (#4088); evidence updated; scores unchanged. |
 | 2026-11-06 | minor | Control bar: Paragraph: link and Align left/center/right while type is selected, trimmed from the bar's right end after X/Y/W/H and the Align buttons (#5372); evidence added; scores unchanged. |
 | 2026-11-04 | minor | Contour add-on (beyond Illustrator): drag away from a selected shape's edge to grow a live copy of it, or toward the inside to shrink it; the copy carries a live Offset Path effect, so it stays editable until Bake (Expand Appearance), a second drag changes the same Contour instead of nesting one, and a floating bar sets the distance and the Sharp, Round or Square corners. `addon.contour.set` is the command behind it. It is a built-in add-on: Object › Plug-ins › Contour, and its own heading in All Tools, with no default shortcut or toolbar slot. A VectorCraft design built on Offset Path; no other application was inspected. Scores and estimates unchanged. |
 | 2026-11-04 | minor | Contour tool (beyond Illustrator): drag away from a selected shape's edge to grow a live copy of it, or toward the inside to shrink it; the copy carries a live Offset Path effect, so it stays editable until Bake (Expand Appearance), a second drag changes the same Contour instead of nesting one, and a floating bar sets the distance and the Sharp, Round or Square corners. `object.contour` is the command behind it. A VectorCraft design built on Offset Path; no other application was inspected. Scores and estimates unchanged. |
diff --git a/docs/ui-parity.md b/docs/ui-parity.md
index c53620ef9..3f08e6a6e 100644
--- a/docs/ui-parity.md
+++ b/docs/ui-parity.md
@@ -1,6 +1,6 @@
 # UI and interaction parity
 
-> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-06 · **Change:** minor (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; 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:** 2026-11-06 · **Change:** minor (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; 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
 
@@ -38,6 +38,7 @@ Artboard Options forwards the active Artboard tool's Scale Artwork with Artboard
 
 | Date | Change | Summary |
 |---|---|---|
+| 2026-11-06 | minor | Scrubby labels: the Control bar's Stroke: and Opacity: and the Properties panel's Stroke, links to their panels, scrub the field after them as other labels do; a click still opens the panel (#4088); scores and estimates unchanged |
 | 2026-11-05 | minor | Direct Selection: Shift-click picks several points of a blend's spine and dragging one moves them all, with the key objects on them, in one undo step (#5285); scores and estimates unchanged |
 | 2026-11-05 | minor | Direct Selection: Cmd/Ctrl held lends the Selection tool, whose bounding box shows while the key is down over objects selected whole; its handles scale and rotate, and a Cmd drag moves the whole object with its direct-selected anchors kept (#3901); scores and estimates unchanged |
 | 2026-11-05 | minor | Join tool: scrubbing over the ends of two crossing open paths that run past the crossing trims those ends and joins the paths there with a corner, instead of drawing a segment between the ends (#5844); scores and estimates unchanged |
@@ -252,7 +253,7 @@ tools, never checked side by side) isn't captured row by row.
 | Units: pt, pc, in, mm, cm, px, ft-in, m, yd, ft; General/Stroke/Type units | done | units preference reverting to points on SVG output reported (#864) |
 | Units › East Asian Type (Q and Ha) | done | #394: `unitsAsianType` offers every unit and Q and Ha, a quarter of a millimetre each ([Scripting Guide's Measurement Units](https://ai-scripting.docsforadobe.dev/scripting/measurementUnits/): 0.709 pt per Q; [InDesign's unit notation](https://helpx.adobe.com/in/indesign/desktop/layout-and-grid-tools/rulers-and-measure-tools/change-ruler-measurement-units.html): `q`, `h`); only it lists Q and Ha. The public pages do not say which fields use it, so no field uses it yet and that waits for a source. Tests `q_and_ha_are_a_quarter_millimetre`, `east_asian_type_unit_*` |
 | Field precision: 3 decimals for steps; values kept as f64 | done | |
-| Scrubby labels (beyond Illustrator) | done | #400 |
+| Scrubby labels (beyond Illustrator) | done | #400; the labels that are links (the Control bar's Stroke: and Opacity:, the Properties panel's Stroke) scrub too, and a click on them still opens their panel (#4088) |
 | 3D Lighting Color picker, preview, reset dot and Reset all | initial | One to ten opaque RGB lights for Revolve, Extrude & Bevel, Inflate and Rotate; select, add or delete a light and edit its settings or gizmo; Standard, Diffuse, Top Left and Right select original rigs, with Custom for manual changes; Cancel restores all lights |
 | Dialogs open with the first field focused and selected; Enter confirms | done | on every open, not only the first (#1367); a first field that starts greyed out takes the focus once enabled (#1395) |
 | Value fields: selected text readable in every brightness; a focused field follows its value when a slider or preview changes it | partial | #1490 (part of #1465: the wheel over a hovered, unfocused field still scrolls the panel), #1457 |