From 03dee860713a6161479c401cc1fc4b46ef6697c2 Mon Sep 17 00:00:00 2001
From: YuSanka <yusanka@gmail.com>
Date: Mon, 22 Feb 2021 18:50:01 +0100
Subject: [PATCH] ObjectList: After deleting volumes from the object, update
 the extruder color for the object from the last and only volume

---
 src/slic3r/GUI/GUI_ObjectList.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/slic3r/GUI/GUI_ObjectList.cpp b/src/slic3r/GUI/GUI_ObjectList.cpp
index ff76c625e..5e4dd8789 100644
--- a/src/slic3r/GUI/GUI_ObjectList.cpp
+++ b/src/slic3r/GUI/GUI_ObjectList.cpp
@@ -2487,6 +2487,13 @@ bool ObjectList::del_subobject_from_object(const int obj_idx, const int idx, con
             if (!last_volume->config.empty()) {
                 object->config.apply(last_volume->config);
                 last_volume->config.clear();
+
+                // update extruder color in ObjectList
+                wxDataViewItem obj_item = m_objects_model->GetItemById(obj_idx);
+                if (obj_item) {
+                    wxString extruder = object->config.has("extruder") ? wxString::Format("%d", object->config.extruder()) : _L("default");
+                    m_objects_model->SetExtruder(extruder, obj_item);
+                }
             }
         }
     }