diff --git a/addons/accessibility/accessibility.gd b/addons/accessibility/accessibility.gd
index df1effb..3f2a466 100644
--- a/addons/accessibility/accessibility.gd
+++ b/addons/accessibility/accessibility.gd
@@ -1,8 +1,20 @@
 tool
 extends EditorPlugin
 
+func _focus_entered():
+    print("Focus entered.")
+
+func _gui_input():
+    print("GUI input.")
+
+func _augment_node(node):
+    if node is Control:
+        node.connect("focus_entered", self, "_focused")
+        node.connect("mouse_entered", self, "_focused")
+        node.connect("gui_input", self, "_gui_input")
+
 func _enter_tree():
-    print("Hello, world.")
+    get_tree().connect("node_added", self, "_augment_node")
 
 func _exit_tree():
     # Clean-up of the plugin goes here