improving mixer

engine/node_panel_brush.h

@@ -10,6 +10,7 @@ class NodeButtonBrush : public NodeButtonCustom
 public:
     int m_brushID;
     bool m_selected = false;
+    std::string brush_name;
     std::string high_path;
     uint16_t high_id;
     NodeImage* img;
@@ -30,6 +31,7 @@ public:
     virtual void init() override;
     void handle_click(Node* target);
     std::vector<std::string> FindAllBrushes(const std::string& folder);
+    int find_brush(const std::string& name) const;
     uint16_t get_texture_id(int index) const;
     int get_brush_id(int index) const;
     void select_brush(int brush_id);