diff --git a/src/SparseTransform/Convert/ColoredDotWriter.cs b/src/SparseTransform/Convert/ColoredDotWriter.cs
index 89b58034f91b9843a58ad17f92ec19a8196e0ba5..49cba0b537c92daec4c494f3a2b65d72ce3a44ef 100644
--- a/src/SparseTransform/Convert/ColoredDotWriter.cs
+++ b/src/SparseTransform/Convert/ColoredDotWriter.cs
@@ -2,7 +2,9 @@
 
 namespace SparseTransform.Convert
 {
-
+    /// <summary>
+    /// Extends the DotWriter class to output a colored DOT graph.
+    /// </summary>
     internal class ColoredDotWriter : DotWriter
     {
         private bool textcolor;
@@ -27,7 +29,6 @@ namespace SparseTransform.Convert
                 }
             }
         }
-
        
         /// <summary>
         /// Labels the node with the respective colors determined by it's index. Overrides the method in DotWriter