diff --git a/src/main/java/fr/pasteur/ida/zellige/jzy3D/SurfaceDisplay.java b/src/main/java/fr/pasteur/ida/zellige/jzy3D/SurfaceDisplay.java
index 5f253df7a5717a10d9c41ad0ed47467d3d45050d..c26cdcd0be19db68812e19aa709cdcfa43caeb0c 100644
--- a/src/main/java/fr/pasteur/ida/zellige/jzy3D/SurfaceDisplay.java
+++ b/src/main/java/fr/pasteur/ida/zellige/jzy3D/SurfaceDisplay.java
@@ -59,8 +59,8 @@ public class SurfaceDisplay extends AbstractAnalysis
                                 float G = 100f + (z *2);
                                 float R = 100f + z + 10 ;
                                 float B = 100f + z + 10;
-//                                colors[ index ] = Color.RED;
-                                colors[index] = new Color( R, G, B );
+                                colors[ index ] = Color.BLUE;
+//                                colors[index] = new Color( R, G, B );
                                 index++;
                             }
                         }