diff --git a/editor/editor_node.cpp b/editor/editor_node.cpp
index 2cc0619e4a3..2cddf11c147 100644
--- a/editor/editor_node.cpp
+++ b/editor/editor_node.cpp
@@ -5563,6 +5563,14 @@ void EditorNode::_resource_loaded(RES p_resource, const String &p_path) {
 	singleton->editor_folding.load_resource_folding(p_resource, p_path);
 }
 
+void EditorNode::_project_settings_changed() {
+	SceneTree *tree = get_tree();
+	tree->set_debug_collisions_color(GLOBAL_GET("debug/shapes/collision/shape_color"));
+	tree->set_debug_collision_contact_color(GLOBAL_GET("debug/shapes/collision/contact_color"));
+	tree->set_debug_navigation_color(GLOBAL_GET("debug/shapes/navigation/geometry_color"));
+	tree->set_debug_navigation_disabled_color(GLOBAL_GET("debug/shapes/navigation/disabled_geometry_color"));
+}
+
 void EditorNode::_feature_profile_changed() {
 	Ref<EditorFeatureProfile> profile = feature_profile_manager->get_current_profile();
 	TabContainer *import_tabs = cast_to<TabContainer>(import_dock->get_parent());
@@ -5694,6 +5702,7 @@ void EditorNode::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_reload_modified_scenes"), &EditorNode::_reload_modified_scenes);
 	ClassDB::bind_method(D_METHOD("_reload_project_settings"), &EditorNode::_reload_project_settings);
 	ClassDB::bind_method(D_METHOD("_resave_scenes"), &EditorNode::_resave_scenes);
+	ClassDB::bind_method(D_METHOD("_project_settings_changed"), &EditorNode::_project_settings_changed);
 	ClassDB::bind_method(D_METHOD("_feature_profile_changed"), &EditorNode::_feature_profile_changed);
 
 	ClassDB::bind_method("_screenshot", &EditorNode::_screenshot);
@@ -6276,6 +6285,7 @@ EditorNode::EditorNode() {
 
 	project_settings = memnew(ProjectSettingsEditor(&editor_data));
 	gui_base->add_child(project_settings);
+	ProjectSettings::get_singleton()->connect("project_settings_changed", this, "_project_settings_changed");
 
 	run_settings_dialog = memnew(RunSettingsDialog);
 	gui_base->add_child(run_settings_dialog);
diff --git a/editor/editor_node.h b/editor/editor_node.h
index 18ae75fb63b..2b474b665e4 100644
--- a/editor/editor_node.h
+++ b/editor/editor_node.h
@@ -663,6 +663,7 @@ private:
 	void _reload_project_settings();
 	void _resave_scenes(String p_str);
 
+	void _project_settings_changed();
 	void _feature_profile_changed();
 	bool _is_class_editor_disabled_by_feature_profile(const StringName &p_class);
 	Ref<ImageTexture> _load_custom_class_icon(const String &p_path) const;