diff --git a/experiment.t b/experiment.t
index 49919c9..b7bee0d 100644
--- a/experiment.t
+++ b/experiment.t
@@ -47,7 +47,7 @@ gameMain: GameMainDef
 #include "src/action/repair.t"
 
 #include "src/item/_bandage.t"
-#include "src/item/whitePanels.t"
+#include "src/item/interior.t"
 
 /* rooms */
 
diff --git a/src/item/interior.t b/src/item/interior.t
new file mode 100644
index 0000000..4775535
--- /dev/null
+++ b/src/item/interior.t
@@ -0,0 +1,30 @@
+MultiLoc, Decoration
+  '(wall) white matte panel*panels'
+  'white panels'
+  "The basis of the local interior."
+
+  locationList = [
+    orangeRoom,
+    orangeBathroom,
+    yellowRoom,
+    cyanRoom,
+    pinkRoom,
+    redRoom,
+    blackRoom
+  ]
+;
+
+MultiLoc, Decoration
+  'neon lamp*lamps'
+  'neon lamps'
+  "Ordinary neon lamps emit cold light. "
+
+  locationList = [
+    orangeRoom,
+    orangeBathroom,
+    yellowRoom,
+    cyanRoom,
+    pinkRoom,
+    redRoom
+  ]
+;
diff --git a/src/item/whitePanels.t b/src/item/whitePanels.t
deleted file mode 100644
index a229143..0000000
--- a/src/item/whitePanels.t
+++ /dev/null
@@ -1,15 +0,0 @@
-+ whitePanels: MultiLoc, Decoration
-  '(wall) white matte panel*panels'
-  'white panels'
-  "The basis of the local interior."
-
-  locationList = [
-    orangeRoom,
-    orangeBathroom,
-    yellowRoom,
-    cyanRoom,
-    pinkRoom,
-    redRoom,
-    blackRoom
-  ]
-;