DoubleSlider with MM-printer preset: When Object has "Paint-on segmentation", DoubleSlider has same behavior as with modifiers

+ MSW specific: Use BitmapComboBox instead of wxBitmapComboBox to DarkMode for extruder selectors

src/slic3r/GUI/GUI_ObjectList.cpp

@@ -4248,5 +4248,10 @@ ModelObject* ObjectList::object(const int obj_idx) const
     return (*m_objects)[obj_idx];
 }
 
+bool ObjectList::has_paint_on_segmentation()
+{
+    return m_objects_model->HasInfoItem(InfoItemType::MmuSegmentation);
+}
+
 } //namespace GUI
 } //namespace Slic3r