fix node colorization popup position scale

Author: williamchange

material_maker/panels/graph_edit/graph_edit.gd

@@ -1856,8 +1856,11 @@ func colorize_nodes() -> void:
 		mm_globals.set_config("color_picker_color_mode", picker.color_mode)
 		mm_globals.set_config("color_picker_shape", picker.picker_shape))
 
-	popup.content_scale_factor = csf
-	popup.min_size = popup.get_contents_minimum_size() * csf
+	if get_tree().root.gui_embed_subwindows:
+		csf = 1.0
+	else:
+		popup.content_scale_factor = csf
+		popup.min_size = popup.get_contents_minimum_size() * csf
 	popup.position = get_screen_position() + get_local_mouse_position() * csf
 
 	picker.color = nodes[0].generator.color