diff --git a/project/demos/Demos.gd b/project/demos/Demos.gd
index 8629712..d8d8f89 100644
--- a/project/demos/Demos.gd
+++ b/project/demos/Demos.gd
@@ -11,6 +11,12 @@ func _ready() -> void:
 	button_go_back.connect("pressed", self, "_on_ButtonGoBack_pressed")
 
 
+func _input(event: InputEvent) -> void:
+	if event.is_action_pressed("toggle_fullscreen"):
+		OS.window_fullscreen = not OS.window_fullscreen
+		get_tree().set_input_as_handled()
+
+
 func _on_DemoPickerUI_demo_requested() -> void:
 	demo_player.load_demo(demo_picker.demo_path)
 	demo_picker.hide()
diff --git a/project/project.godot b/project/project.godot
index 96c999c..72b4632 100644
--- a/project/project.godot
+++ b/project/project.godot
@@ -200,6 +200,8 @@ config/icon="res://icon.png"
 
 [display]
 
+window/size/width=1920
+window/size/height=1080
 window/size/always_on_top=true
 
 [input]
@@ -228,6 +230,11 @@ sf_down={
 , Object(InputEventJoypadMotion,"resource_local_to_scene":false,"resource_name":"","device":0,"axis":1,"axis_value":1.0,"script":null)
  ]
 }
+toggle_fullscreen={
+"deadzone": 0.5,
+"events": [ Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"pressed":false,"scancode":16777254,"unicode":0,"echo":false,"script":null)
+ ]
+}
 
 [rendering]