improve method name

src/ImageSharp/Image/ImageBase{TPixel}.cs

@@ -186,7 +186,7 @@ namespace SixLabors.ImageSharp
         /// <returns>A new items which is a clone of the original.</returns>
         public ImageBase<TPixel> Clone()
         {
-            return this.CloneInternal();
+            return this.CloneImageBase();
         }
 
         /// <inheritdoc />
@@ -266,7 +266,7 @@ namespace SixLabors.ImageSharp
         /// Clones the image
         /// </summary>
         /// <returns>A new items which is a clone of the original.</returns>
-        protected abstract ImageBase<TPixel> CloneInternal();
+        protected abstract ImageBase<TPixel> CloneImageBase();
 
         /// <summary>
         /// Copies the properties from the other <see cref="IImageBase"/>.

src/ImageSharp/Image/ImageFrame{TPixel}.cs

@@ -137,7 +137,7 @@ namespace SixLabors.ImageSharp
         }
 
         /// <inheritdoc/>
-        protected override ImageBase<TPixel> CloneInternal()
+        protected override ImageBase<TPixel> CloneImageBase()
         {
             return this.Clone();
         }

src/ImageSharp/Image/Image{TPixel}.cs

@@ -202,7 +202,7 @@ namespace SixLabors.ImageSharp
         }
 
         /// <inheritdoc/>
-        protected override ImageBase<TPixel> CloneInternal()
+        protected override ImageBase<TPixel> CloneImageBase()
         {
             return this.Clone();
         }