Write plus symbol over each hole

MusicBoxConverter/MusicBoxScoreGenerator.cs

@@ -151,9 +151,9 @@ namespace MusicBoxConverter
 					HoleSize // radius
 				);
 
-				svg.WriteCross(
+				svg.WritePlus(
 					holePosition,
-					new Vector2(HoleSize, HoleSize)
+					new Vector2(HoleSize, HoleSize).Multiply(1.5f)
 				);
 
 				svg.WriteText(

MusicBoxConverter/SvgWriter.cs

@@ -123,6 +123,23 @@ namespace MusicBoxConverter
 
 		}
 
+		public void WritePlus(Vector2 centre, Vector2 radius, string strokeStyle = "red", float strokeWidth = 1)
+		{
+			WriteLine(
+				centre.Subtract(new Vector2(0, radius.Y)),
+				centre.Add(new Vector2(0, radius.Y)),
+				strokeStyle,
+				strokeWidth
+			);
+			WriteLine(
+				centre.Subtract(new Vector2(radius.X, 0)),
+				centre.Add(new Vector2(radius.X, 0)),
+				strokeStyle,
+				strokeWidth
+			);
+
+		}
+
 		public void StartScaleTransform(float scale)
 		{
 			xml.WriteStartElement("g");

MusicBoxConverter/Utilities/Vector2.cs

@@ -49,7 +49,7 @@ namespace SBRL.Utilities
 				Y - b.Y
 			);
 		}
-		public Vector2 Divide(int b)
+		public Vector2 Divide(float b)
 		{
 			return new Vector2(
 				X / b,
@@ -63,7 +63,7 @@ namespace SBRL.Utilities
 				Y / b.Y
 			);
 		}
-		public Vector2 Multiply(int b)
+		public Vector2 Multiply(float b)
 		{
 			return new Vector2(
 				X * b,