First scaling experiments

src/slic3r/GUI/Preset.hpp

@@ -411,6 +411,8 @@ public:
     // Generate a file path from a profile name. Add the ".ini" suffix if it is missing.
     std::string     path_from_name(const std::string &new_name) const;
 
+    void            clear_bitmap_cache();
+
 #ifdef __linux__
 	static const char* separator_head() { return "------- "; }
 	static const char* separator_tail() { return " -------"; }