diff --git a/crates/engine/src/tests_layers.rs b/crates/engine/src/tests_layers.rs
index 26ea99f4..6ad69cf3 100644
--- a/crates/engine/src/tests_layers.rs
+++ b/crates/engine/src/tests_layers.rs
@@ -187,7 +187,7 @@ fn layer_options_validate_and_template_locks_and_dims() {
     }
     let color = |s: &Session| match node(s, layer).kind {
         NodeKind::Layer { color, .. } => color,
-        _ => unreachable!(),
+        _ => panic!("not a layer"),
     };
     run(&mut s, "layer.setProps", json!({"id": layer.0, "color": "red"}));
     assert_eq!(color(&s), LayerColor::Preset(1));
diff --git a/crates/ui-egui/src/panels/layers.rs b/crates/ui-egui/src/panels/layers.rs
index ac014d12..3e6b8ee4 100644
--- a/crates/ui-egui/src/panels/layers.rs
+++ b/crates/ui-egui/src/panels/layers.rs
@@ -748,6 +748,9 @@ fn thumb(ui: &Ui, n: &Node, r: egui::Rect) {
     });
 }
 
+/// A panel menu item: label, command, params, enabled, checked.
+type MenuItem<'a> = (&'a str, &'a str, Value, bool, bool);
+
 /// The Layers panel's (≡) menu.
 pub fn menu(app: &mut VectorcraftApp, ui: &mut Ui) {
     let Some(st) = app.session.active() else { return };
@@ -772,7 +775,7 @@ pub fn menu(app: &mut VectorcraftApp, ui: &mut Ui) {
             all_layers.push(n);
         }
     });
-    let mut items: Vec<Option<(&str, &str, Value, bool, bool)>> = vec![
+    let mut items: Vec<Option<MenuItem>> = vec![
         Some(("New Layer…", "ui.newLayer", json!({}), true, false)),
         Some(("New Sublayer…", "ui.newLayer", json!({"sublayer": true}), current.is_some(), false)),
         Some(("Duplicate Selection", "layer.duplicate", json!({}), !targets.is_empty(), false)),