Minor cleanups

Author: castarco

ColorSharp/src/ColorSpaces/CIEXYZ.cs

@@ -38,7 +38,7 @@ namespace ColorSpaces
 		/**
 		 * CIE 1931 (2º) XYZ Color Space.
 		 */
-		public class CIEXYZ : AConvertibleColor
+		public sealed class CIEXYZ : AConvertibleColor
 		{
 			#region readonly properties
 
@@ -57,7 +57,7 @@ public CIEXYZ() {
 			/**
 			 * This constructor "installs" the conversor methods into the instance
 			 */
-			protected CIEXYZ(AConvertibleColor dataSource=null) : base(dataSource) {
+			private CIEXYZ(AConvertibleColor dataSource=null) : base(dataSource) {
 				Conversors.Add (typeof(SRGB), ToSRGB);
 				Conversors.Add (typeof(CIExyY), ToxyY);
 			}

ColorSharp/src/ColorSpaces/CIExyY.cs

@@ -191,6 +191,7 @@ public override int GetHashCode ()
 
 			#endregion
 
+
 			#region internal utilities
 
 			/**

ColorSharp/src/ColorSpaces/SRGB.cs

@@ -38,7 +38,7 @@ namespace ColorSpaces
 		/**
 	 * HP's & Microsoft's 1996 sRGB Color Space.
 	 */
-		public class SRGB : AConvertibleColor
+		public sealed class SRGB : AConvertibleColor
 		{
 			#region private properties
 
@@ -52,7 +52,7 @@ public class SRGB : AConvertibleColor
 			/**
 		 * This constructor "installs" the conversor methods into the instance
 		 */
-			protected SRGB(AConvertibleColor dataSource=null) : base(dataSource) {
+			private SRGB(AConvertibleColor dataSource=null) : base(dataSource) {
 				Conversors.Add (typeof(CIEXYZ), ToCIEXYZ);
 			}