public override void OnOpen()
        {
            this.inputBGStyle                 = new GUIStyle(GUI.skin.FindStyle("TabWindowBackground"));
            this.suggestionHeaderStyle        = new GUIStyle(GUI.skin.FindStyle("IN BigTitle"));
            this.suggestionHeaderStyle.margin = new RectOffset(0, 0, 0, 0);
            this.suggestionItemStyle          = new GUIStyle(GUI.skin.FindStyle("MenuItem"));
            this.searchFieldStyle             = new GUIStyle(GUI.skin.FindStyle("SearchTextField"));
            this.searchCloseOnStyle           = new GUIStyle(GUI.skin.FindStyle("SearchCancelButton"));
            this.searchCloseOffStyle          = new GUIStyle(GUI.skin.FindStyle("SearchCancelButtonEmpty"));

            this.inputfieldFocus = true;

            this.searchText  = "";
            this.suggestions = DATABASE_INVENTORY.GetItemSuggestions(this.searchText);
        }