ENH: [STUDIO-1272] handle default filament color in presetcomboxbox

Change-Id: Id78749db063fd222915b1aa5ad6abf47fb4294ca

src/slic3r/GUI/PresetComboBoxes.hpp

@@ -145,6 +145,8 @@ protected:
     wxBitmap* get_bmp(  std::string bitmap_key, const std::string& main_icon_name, const std::string& next_icon_name,
                         bool is_enabled = true, bool is_compatible = true, bool is_system = false);
 
+    wxBitmap *get_bmp(Preset const &preset);
+
 private:
     void fill_width_height();
 };