diff --git a/behaviours/spawner_choice.gd b/behaviours/spawner_choice.gd
index 71def18..8af2a02 100644
--- a/behaviours/spawner_choice.gd
+++ b/behaviours/spawner_choice.gd
@@ -1,6 +1,11 @@
+@icon("res://behaviours/spawner_choice.svg")
 extends Node
 class_name SpawnerChoice
 
+## Randomly choose a [Spawner] to use from [field spawners] considering [field weights].
+##
+## If a null [Spawner] is selected, nothing is spawned.
+
 
 @export var spawners: Array[Spawner] = []
 @export var weights: Array[int] = []
@@ -24,7 +29,9 @@ func select_spawner() -> Spawner:
 	return spawners[idx]
 
 func spawn():
-	select_spawner().spawn()
+	var spawner = select_spawner()
+	if spawner != null:
+		spawner.spawn()
 
 
 func _ready():
diff --git a/behaviours/spawner_choice.svg b/behaviours/spawner_choice.svg
new file mode 100644
index 0000000..6665d20
--- /dev/null
+++ b/behaviours/spawner_choice.svg
@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   viewBox="0 0 640 640"
+   version="1.1"
+   id="svg1"
+   sodipodi:docname="spawner_choice.svg"
+   width="16"
+   height="16"
+   inkscape:version="1.3.2 (091e20ef0f, 2023-11-25, custom)"
+   xml:space="preserve"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"><defs
+     id="defs1" /><sodipodi:namedview
+     id="namedview1"
+     pagecolor="#ffffff"
+     bordercolor="#000000"
+     borderopacity="0.25"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     inkscape:zoom="26.34375"
+     inkscape:cx="6.3582444"
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+     inkscape:window-height="1020"
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+     inkscape:window-y="32"
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+     d="M 0,546.3 C 0,447.8 79.8,368 178.3,368 h 91.4 c 98.5,0 178.3,79.8 178.3,178.3 0,16.4 -13.3,29.7 -29.7,29.7 H 29.7 C 13.3,576 0,562.7 0,546.3 Z"
+     id="path2"
+     style="fill:#e0e0e0" /><path
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+     id="path1-7"
+     style="fill:#e0e0e0;stroke-width:0.755768" /></svg>
diff --git a/behaviours/spawner_choice.svg.import b/behaviours/spawner_choice.svg.import
new file mode 100644
index 0000000..ad1beae
--- /dev/null
+++ b/behaviours/spawner_choice.svg.import
@@ -0,0 +1,37 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://c0f5nbe7lhib6"
+path="res://.godot/imported/spawner_choice.svg-91bce9cbbb63e3eb7738ffe03834ed28.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://behaviours/spawner_choice.svg"
+dest_files=["res://.godot/imported/spawner_choice.svg-91bce9cbbb63e3eb7738ffe03834ed28.ctex"]
+
+[params]
+
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+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
+svg/scale=1.0
+editor/scale_with_editor_scale=false
+editor/convert_colors_with_editor_theme=false