fix ordering issue in PGButton

panda/src/pgui/pgButton.cxx

@@ -213,10 +213,10 @@ setup(const string &label, float bevel) {
   set_frame_style(S_depressed, style);
   depressed->set_transform(TransformState::make_pos(LVector3f(0.05f, 0.0f, -0.05f)));
 
-  get_state_def(S_ready).attach_new_node(ready);
-  get_state_def(S_depressed).attach_new_node(depressed);
-  get_state_def(S_rollover).attach_new_node(rollover);
-  get_state_def(S_inactive).attach_new_node(inactive);
+  get_state_def(S_ready).attach_new_node(ready, 1);
+  get_state_def(S_depressed).attach_new_node(depressed, 1);
+  get_state_def(S_rollover).attach_new_node(rollover, 1);
+  get_state_def(S_inactive).attach_new_node(inactive, 1);
 
   ready->add_child(geom);
   depressed->add_child(geom);