add and fix comments -- note on making colours in Skia Sharp.

DeathSocket/ImageServices.fs

@@ -22,7 +22,7 @@
     (* Note on Use of Temp File in Functions which Add A Grid Overlay
     ===========================================================================
     The temp. file is used in the functions below are there to convert images
-    with indexed pixels. Instead of listig them all, just assume any function
+    with indexed pixels. Instead of listing them all, just assume any function
     with a "*Spec" type as a parameter will use this "temp" file. *)
 
     let drawBrushSpecGrid (spec: BrushSpec) =
@@ -68,6 +68,8 @@
         stroke.Style <- SKPaintStyle.Stroke
         stroke.StrokeWidth <- float32 3
         stroke.Color <- SKColors.BlueViolet
+        // Note about generating colours in Skia Sharp.
+        //stroke.Color <- new SKColor (byte 1000, byte 5111, byte 4225, byte 255)
         use imageFill = new SKPaint ()
         imageFill.Style <- SKPaintStyle.Fill