Now it's slightly better, but why is there fog??

src/menu.rs

@@ -19,7 +19,10 @@ impl Plugin for MenuPlugin {
                 )
                     .run_if(in_state(GameState::Menu)),
             )
-            .add_systems(OnEnter(GameState::Menu), activate::<Menu>)
+            .add_systems(
+                OnEnter(GameState::Menu),
+                (activate::<Menu>, activate::<display3d::Display3d>),
+            )
             .add_systems(OnExit(GameState::Menu), deactivate::<Menu>);
     }
 }