diff --git a/crates/ui-egui/src/dialogs.rs b/crates/ui-egui/src/dialogs.rs
index 7ab92060..8d70d940 100644
--- a/crates/ui-egui/src/dialogs.rs
+++ b/crates/ui-egui/src/dialogs.rs
@@ -820,13 +820,17 @@ fn hint(inp: &SelInput) -> &'static str {
 
 /// Width of the label column; longer labels are cut with "…".
 const LABEL_W: f32 = 92.0;
+/// The label column grows to fit its labels up to this, then long labels wrap.
+const LABEL_MAX_W: f32 = 150.0;
 
-/// A row label in the dialog's label column.
+/// A row label in the dialog's label column (the grid sizes the column to its widest label).
 pub(crate) fn row_label(ui: &mut egui::Ui, text: &str) {
     ROW.with(|r| *r.borrow_mut() = text.to_string());
-    ui.allocate_ui_with_layout(vec2(LABEL_W, 22.0), egui::Layout::left_to_right(egui::Align::Center), |ui| {
-        ui.set_width(LABEL_W);
-        ui.add(egui::Label::new(text).truncate()).on_hover_text(text);
+    let full = egui::WidgetText::from(text).into_galley(ui, Some(egui::TextWrapMode::Extend), f32::INFINITY, egui::TextStyle::Body).size().x;
+    let w = full.clamp(LABEL_W, LABEL_MAX_W);
+    ui.allocate_ui_with_layout(vec2(w, 22.0), egui::Layout::left_to_right(egui::Align::Center), |ui| {
+        ui.set_width(w);
+        ui.add(egui::Label::new(text).wrap());
     });
 }
 
diff --git a/crates/ui-egui/src/preview.rs b/crates/ui-egui/src/preview.rs
index 146cc719..e9ef862e 100644
--- a/crates/ui-egui/src/preview.rs
+++ b/crates/ui-egui/src/preview.rs
@@ -270,12 +270,19 @@ pub fn build(before: &ModelState, after: &ModelState, c: Colors) -> Built {
         }
         let nf = am.tri_face.iter().max().map_or(0, |m| *m as usize + 1);
         let added: Vec<bool> = (0..nf).map(|f| old.as_ref().is_none_or(|bm| face_is_new(&am, f, bm))).collect();
+        // Material removed from a body (a hole, a pocket): its new faces also show through the
+        // body in the cut colour, so the cut is seen from any side.
+        let cut = old.as_ref().is_some_and(|bm| am.measure().volume < bm.measure().volume - 1e-6);
         for (t, f) in am.triangles.iter().zip(&am.tri_face) {
-            let col = if added.get(*f as usize).copied().unwrap_or(true) { c.added } else { c.body };
+            let new = added.get(*f as usize).copied().unwrap_or(true);
+            let col = if new { c.added } else { c.body };
             for k in t {
                 let i = *k as usize;
                 if let (Some(p), Some(n)) = (am.positions.get(i), am.normals.get(i)) {
                     sc.tri(p.to_f32(), n.to_f32(), col);
+                    if new && cut {
+                        sc.xray_tri(p.to_f32(), n.to_f32(), c.removed);
+                    }
                 }
             }
         }
@@ -364,6 +371,19 @@ mod tests {
         bytes.chunks(stride).filter(|v| v.get(24..28) == Some(&col[..])).count()
     }
 
+    #[test]
+    fn a_hole_shows_its_cut_through_the_body() {
+        let mut s = solvecraft_engine::Session::default();
+        s.execute("solid.box", &json!({"length": 40, "width": 30, "height": 20})).unwrap();
+        let p = s.preview(&[("solid.hole".to_string(), json!({"position": [20, 15, 20], "diameter": 5, "depth": 10}))]).unwrap();
+        let b = build(&p.before, &p.after, colors());
+        // The hole's walls are drawn see-through in the cut colour (seen from any side).
+        assert!(count(&b.scene.xray, 28, colors().removed) > 0);
+        // A feature that only adds material shows no cut.
+        let p = s.preview(&[("solid.box".to_string(), json!({"length": 10, "width": 10, "height": 30, "operation": "join"}))]).unwrap();
+        assert_eq!(count(&build(&p.before, &p.after, colors()).scene.xray, 28, colors().removed), 0);
+    }
+
     fn plate() -> Session {
         let mut s = Session::default();
         for (id, p) in [