diff --git a/DeathSocket/DeathSocket.fsproj b/DeathSocket/DeathSocket.fsproj
index fe88a24..1e8d801 100644
--- a/DeathSocket/DeathSocket.fsproj
+++ b/DeathSocket/DeathSocket.fsproj
@@ -32,7 +32,7 @@
     <Compile Include="ImagePrep.fs" />
     <Compile Include="ImageServices.fs" />
     <Compile Include="GridPainter.fs" />
-    <None Include="..\..\..\_temp\death-socket-repo-logo.png">
+    <None Include="..\..\..\_projects\death-socket\death-socket-repo-logo.png">
       <Pack>True</Pack>
       <PackagePath></PackagePath>
     </None>
@@ -46,7 +46,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Update="FSharp.Core" Version="4.7.0" />
+    <PackageReference Update="FSharp.Core" Version="4.7.2" />
   </ItemGroup>
 
 </Project>
diff --git a/DeathSocket/GridPainter.fs b/DeathSocket/GridPainter.fs
index a155da0..7509ba4 100644
--- a/DeathSocket/GridPainter.fs
+++ b/DeathSocket/GridPainter.fs
@@ -34,13 +34,13 @@ namespace DeathSocket
         /// is not in use or needed by another program/process.
         /// This is because it is locked whilst in this function.
         /// </remarks>
-        let applyGridToImageAsync (spec: ImageSpec) =
+        let applyGridToImageAsync (greyScale: bool) (spec: ImageSpec) =
             async {
                 try
                     match spec with
                     | Brush b ->
                         validateIO b.originalPath b.savePath |> ignore
-                        drawBrushSpecGrid b
+                        drawBrushSpecGrid b greyScale
                     | RGBA r ->
                         validateIO r.originalPath r.savePath |> ignore
                         drawRGBAGrid r
diff --git a/DeathSocket/ImageServices.fs b/DeathSocket/ImageServices.fs
index 9949829..d55341c 100644
--- a/DeathSocket/ImageServices.fs
+++ b/DeathSocket/ImageServices.fs
@@ -191,21 +191,68 @@
     assume any function with a "*Spec" type as a parameter will use this "temp"
     file. *)
 
-    let drawBrushSpecGrid (spec: BrushSpec) =
+    let drawBrushSpecGrid (spec: BrushSpec) (greyScale: bool) =
         use original = Bitmap.FromFile spec.originalPath
         use temp = new Bitmap(original)
-        use clone =
-            temp.Clone(new Rectangle(0, 0, temp.Width, temp.Height), PixelFormat.Format32bppArgb)
-        use graphics = Graphics.FromImage(clone)
-        use pen = new Pen (spec.colour, width = spec.penWidth)
-        graphics.DrawImage(original,new Rectangle(0, 0, clone.Width, clone.Height))
-        let horizontalLines =
-            createHorizontalLines (clone.Size.Width) (clone.Size.Height) (spec.rows)
-        let verticalLines =
-            createVerticalLines (clone.Size.Width) (clone.Size.Height) (spec.columns)
-        for line in horizontalLines do graphics.DrawLines (pen, line)
-        for line in verticalLines do graphics.DrawLines (pen, line)
-        clone.Save (spec.savePath)
+        //use clone =
+        //    temp.Clone(new Rectangle(0, 0, temp.Width, temp.Height), PixelFormat.Format32bppArgb)
+
+        // The orignial is above...
+
+        if greyScale = true then
+            
+            use temp1 = new Bitmap(original.Width, original.Height)
+            use g = Graphics.FromImage(temp1)
+            let aM: float32[][] = [|
+                [| (float32 0.3); (float32 0.3); (float32 0.3); (float32 0.0); (float32 0.0)    |];
+                [| (float32 0.59); (float32 0.59); (float32 0.59); (float32 0.0); (float32 0.0) |];
+                [| (float32 0.11); (float32 0.11); (float32 0.11); (float32 0.0); (float32 0.0) |];
+                [| (float32 0.0); (float32 0.0); (float32 0.0); (float32 1.0); (float32 0.0)    |];
+                [| (float32 0.0); (float32 0.0); (float32 0.0); (float32 0.0); (float32 1.0)    |];
+            |]
+
+            let colourMatrix = new ColorMatrix(aM)
+            use attributes = new ImageAttributes()
+            attributes.SetColorMatrix(colourMatrix)
+            g.DrawImage(temp, new Rectangle(0, 0, temp.Width, temp.Height),
+                        0, 0, temp.Width, temp.Height, GraphicsUnit.Pixel, attributes)
+
+            // use clone = temp1
+            use graphics = Graphics.FromImage(temp1)
+            use pen = new Pen (spec.colour, width = spec.penWidth)
+            graphics.DrawImage(temp1 ,new Rectangle(0, 0, temp1.Width, temp1.Height))
+            let horizontalLines =
+                createHorizontalLines (temp1.Size.Width) (temp1.Size.Height) (spec.rows)
+            let verticalLines =
+                createVerticalLines (temp1.Size.Width) (temp1.Size.Height) (spec.columns)
+            for line in horizontalLines do graphics.DrawLines (pen, line)
+            for line in verticalLines do graphics.DrawLines (pen, line)
+            temp1.Save (spec.savePath)
+        else
+            use clone = temp.Clone(new Rectangle(0, 0, temp.Width, temp.Height), PixelFormat.Format32bppArgb)
+            use graphics = Graphics.FromImage(clone)
+            use pen = new Pen (spec.colour, width = spec.penWidth)
+            graphics.DrawImage(original,new Rectangle(0, 0, clone.Width, clone.Height))
+            let horizontalLines =
+                createHorizontalLines (clone.Size.Width) (clone.Size.Height) (spec.rows)
+            let verticalLines =
+                createVerticalLines (clone.Size.Width) (clone.Size.Height) (spec.columns)
+            for line in horizontalLines do graphics.DrawLines (pen, line)
+            for line in verticalLines do graphics.DrawLines (pen, line)
+            clone.Save (spec.savePath)
+
+        // The original is below...
+
+        //use graphics = Graphics.FromImage(clone)
+        //use pen = new Pen (spec.colour, width = spec.penWidth)
+        //graphics.DrawImage(original,new Rectangle(0, 0, clone.Width, clone.Height))
+        //let horizontalLines =
+        //    createHorizontalLines (clone.Size.Width) (clone.Size.Height) (spec.rows)
+        //let verticalLines =
+        //    createVerticalLines (clone.Size.Width) (clone.Size.Height) (spec.columns)
+        //for line in horizontalLines do graphics.DrawLines (pen, line)
+        //for line in verticalLines do graphics.DrawLines (pen, line)
+        //clone.Save (spec.savePath)
 
     let drawRGBAGrid (spec: RGBASpec) =
         use original = Bitmap.FromFile spec.originalPath
diff --git a/DeathSocketCLI/Commands.fs b/DeathSocketCLI/Commands.fs
index e924dbb..17ebe66 100644
--- a/DeathSocketCLI/Commands.fs
+++ b/DeathSocketCLI/Commands.fs
@@ -32,15 +32,15 @@
         let exit () = Environment.Exit (Environment.ExitCode)
 
         [<ListCommand>]
-        [<Parameters "(image-path: string) (new-path: string)">]
+        [<Parameters "(image-path: string) (new-path: string) (greyScale: bool)">]
         [<Description
             "Takes the image at 'image-path' applies a 10x10 grid (in white) to it and saves the result at 'new-path'.">]
-        [<Usage "add-default C:/base-image.png C:/final-image.png">]
-        let ``add-default`` imgPath newPath =
+        [<Usage "add-default C:/base-image.png C:/final-image.png true">]
+        let ``add-default`` imgPath newPath greyScale=
             try
                 printfn "[INFO.] Adding default grid to image..."
                 Brush (buildDefaultSpec imgPath newPath)
-                |> applyGridToImageAsync
+                |> applyGridToImageAsync greyScale
                 |> Async.Start
                 showEndOfCommandMessage
             with
@@ -55,11 +55,11 @@
         [<Description "Adds a grid to an image, using the specified parameters, and saves it.">]
         [<Usage
             "add-grid C:/orignal-image.png 10 5 2 red C:/new-image.png">]
-        let ``add-grid`` imgPath numRows numColumns pWidth colour newPath =
+        let ``add-grid`` imgPath numRows numColumns pWidth colour newPath greyScale=
             try
                 printfn "[INFO.] Adding grid to image..."
                 Brush (buildSpec imgPath numRows numColumns pWidth colour newPath)
-                |> applyGridToImageAsync
+                |> applyGridToImageAsync greyScale
                 |> Async.Start
                 showEndOfCommandMessage
             with
@@ -109,16 +109,16 @@
                 printfn "%s" item.Key
             showEndOfCommandMessage
 
-        let``add-skia-grid`` imgPath numRows numColumns pWidth colour newPath =
+        let``add-skia-grid`` imgPath numRows numColumns pWidth colour newPath greyScale=
             printfn "[INFO.] Adding SkiaSharp grid to image..."
             Skia (buildSkiaSpec imgPath numRows numColumns pWidth colour newPath)
-            |> applyGridToImageAsync
+            |> applyGridToImageAsync greyScale
             |> Async.Start
             showEndOfCommandMessage
 
-        let``add-skia-rgb-grid`` imgPath numRows numColumns pWidth r g b newPath =
+        let``add-skia-rgb-grid`` imgPath numRows numColumns pWidth r g b newPath greyScale =
             printfn "[INFO.] Adding SkiaSharp grid to image..."
             SkiaRGB (buildSkiaRGBSpec imgPath numRows numColumns pWidth r g b newPath)
-            |> applyGridToImageAsync
+            |> applyGridToImageAsync greyScale
             |> Async.Start
             showEndOfCommandMessage
\ No newline at end of file
diff --git a/TestCentre/LibraryTests.fs b/TestCentre/LibraryTests.fs
index 17abe0c..019743b 100644
--- a/TestCentre/LibraryTests.fs
+++ b/TestCentre/LibraryTests.fs
@@ -134,7 +134,7 @@
                      penWidth = float32 (newPenWidth())
                      rows = 10
                      columns = 10 })
-            |> applyGridToImageAsync
+            |> applyGridToImageAsync true // true is temp.
             |> Async.RunSynchronously
             (File.Exists sPath) = true
 
@@ -152,7 +152,7 @@
                     penWidth = float32 (newPenWidth())
                     rows = 10
                     columns = 10 })
-            |> applyGridToImageAsync
+            |> applyGridToImageAsync true // true is temp.
             |> Async.RunSynchronously
             (File.Exists sPath) = true
 
@@ -199,7 +199,7 @@
                     penWidth = float32 (newPenWidth())
                     rows = newNum ()
                     columns = newNum () })
-            |> applyGridToImageAsync
+            |> applyGridToImageAsync true // true is temp.
             |> Async.RunSynchronously
             (File.Exists sPath) = true
 
@@ -217,7 +217,7 @@
                        penWidth = float32 (newPenWidth())
                        rows = newNum ()
                        columns = newNum () })
-            |> applyGridToImageAsync
+            |> applyGridToImageAsync true // true is temp.
             |> Async.RunSynchronously
             (File.Exists sPath) = true