diff --git a/interface/wx/grid.h b/interface/wx/grid.h
index 1e9366ddfc..2429ed7dd7 100644
--- a/interface/wx/grid.h
+++ b/interface/wx/grid.h
@@ -5811,6 +5811,28 @@ public:
      */
     void RefreshAttr(int row, int col);
 
+    /**
+        Redraw all the cells in the given block.
+
+        Refresh the block of cells with the given corners.
+
+        If the bottom right corner coordinates are invalid, i.e. set to `-1`,
+        the top left corner coordinates are used for it, i.e. just a single
+        cell is refreshed. If the top left corner coordinates are invalid as
+        well, the function simply returns without doing anything. Note,
+        however, that both coordinates need to be valid or invalid
+        simultaneously, i.e. setting the top row to `-1` but using a valid
+        value for the left column is unsupported and would result in an
+        assertion failure.
+
+        @since 3.1.3
+     */
+    void RefreshBlock(const wxGridCellCoords& topLeft,
+                      const wxGridCellCoords& bottomRight);
+    /// @overload
+    void RefreshBlock(int topRow, int leftCol,
+                      int bottomRow, int rightCol);
+
     /**
         Draws part or all of a wxGrid on a wxDC for printing or display.
 
diff --git a/interface/wx/pen.h b/interface/wx/pen.h
index 47a412aefe..297a6e26b2 100644
--- a/interface/wx/pen.h
+++ b/interface/wx/pen.h
@@ -452,7 +452,7 @@ public:
      */
     void SetQuality(wxPenQuality quality);
 
-    //@{
+    ///@{
     /**
         The pen's colour is changed to the given colour.
 
@@ -460,7 +460,7 @@ public:
     */
     virtual void SetColour(wxColour& colour);
     virtual void SetColour(unsigned char red, unsigned char green, unsigned char blue);
-    //@}
+    ///@}
 
     /**
         Associates an array of dash values (defined as @c char in X, @c DWORD under