FIX:fix bug for the base color of the color modification

after matching the untreated material
jira:STUDIO-10062

Change-Id: I699fd843600182bc87b224eee488e752b64ca0b4
(cherry picked from commit 29b0be89eb5190bd83d783bf173f14950aef738d)

src/slic3r/GUI/BaseTransparentDPIFrame.hpp

@@ -39,6 +39,7 @@ public:
     virtual void on_timer(wxTimerEvent &event);
     void         set_target_pos_and_gradual_disappearance(wxPoint pos);
     void         call_start_gradual_disappearance();
+    void         restart();
 
 protected:
     Button *m_button_ok     = nullptr;