diff --git a/Source/OpenTK/Graphics/ES20/Helper.cs b/Source/OpenTK/Graphics/ES20/Helper.cs
index 4fdd6697..fe989cfc 100644
--- a/Source/OpenTK/Graphics/ES20/Helper.cs
+++ b/Source/OpenTK/Graphics/ES20/Helper.cs
@@ -82,6 +82,11 @@ namespace OpenTK.Graphics.ES20
             GL.BlendColor(color.R / 255.0f, color.G / 255.0f, color.B / 255.0f, color.A / 255.0f);
         }
 
+        public static void BlendColor(Color4 color)
+        {
+            GL.BlendColor(color.R, color.G, color.B, color.A);
+        }
+
         #endregion
 
         #region Uniform
@@ -385,6 +390,16 @@ namespace OpenTK.Graphics.ES20
             GL.Viewport(rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
         }
 
+        public static void Viewport(OpenTK.Point location, OpenTK.Size size)
+        {
+            GL.Viewport(location.X, location.Y, size.Width, size.Height);
+        }
+
+        public static void Viewport(OpenTK.Rectangle rectangle)
+        {
+            GL.Viewport(rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
+        }
+
         #endregion
 
 #pragma warning restore 3019
diff --git a/Source/OpenTK/Graphics/OpenGL/GLHelper.cs b/Source/OpenTK/Graphics/OpenGL/GLHelper.cs
index ee8973d5..fe6eb1ac 100644
--- a/Source/OpenTK/Graphics/OpenGL/GLHelper.cs
+++ b/Source/OpenTK/Graphics/OpenGL/GLHelper.cs
@@ -123,6 +123,10 @@ namespace OpenTK.Graphics.OpenGL
             GL.Color4(color.X, color.Y, color.Z, color.W);
         }
 
+        public static void Color4(Color4 color)
+        {
+            GL.Color4(color.R, color.G, color.B, color.A);
+        }
 
         #endregion
 
@@ -147,6 +151,11 @@ namespace OpenTK.Graphics.OpenGL
             GL.BlendColor(color.R / 255.0f, color.G / 255.0f, color.B / 255.0f, color.A / 255.0f);
         }
 
+        public static void BlendColor(Color4 color)
+        {
+            GL.BlendColor(color.R, color.G, color.B, color.A);
+        }
+
         #endregion
 
         #region public static void Material() overloads
@@ -818,6 +827,16 @@ namespace OpenTK.Graphics.OpenGL
             GL.Viewport(rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
         }
 
+        public static void Viewport(OpenTK.Point location, OpenTK.Size size)
+        {
+            GL.Viewport(location.X, location.Y, size.Width, size.Height);
+        }
+
+        public static void Viewport(OpenTK.Rectangle rectangle)
+        {
+            GL.Viewport(rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
+        }
+
         #endregion
 
         #region TexEnv