diff --git a/Aaru.Gui/Controls/BlockMap.cs b/Aaru.Gui/Controls/BlockMap.cs
index 80abe0b16..fd616d69e 100644
--- a/Aaru.Gui/Controls/BlockMap.cs
+++ b/Aaru.Gui/Controls/BlockMap.cs
@@ -438,6 +438,28 @@ namespace Aaru.Gui.Controls
             }
         }
 
+        void DrawSquares(Color[] colors, int borderWidth, int sideLength)
+        {
+            using IDrawingContextImpl ctxi = _bitmap.CreateDrawingContext(null);
+            using var ctx                  = new DrawingContext(ctxi, false);
+
+            int squareWidth  = (sideLength - (2 * borderWidth)) / colors.Length;
+            int squareHeight = squareWidth;
+            int x            = 0;
+            int y            = 0;
+
+            foreach(Color color in colors)
+            {
+                ctx.FillRectangle(new SolidColorBrush(color), new Rect(x, y, squareWidth, squareHeight));
+                x += squareWidth + (2 * borderWidth);
+                if(x >= sideLength)
+                {
+                    x = 0;
+                    y += squareHeight + (2 * borderWidth);
+                }
+            }
+        }
+
         protected override void OnAttachedToLogicalTree(LogicalTreeAttachmentEventArgs e)
         {
             if(Width  < 1          ||