--- a/Colormap.st	Sat Jan 28 18:35:48 2017 +0100
+++ b/Colormap.st	Tue Jan 31 13:31:27 2017 +0100
@@ -632,6 +632,12 @@
     "Modified: 23.4.1996 / 22:13:43 / cg"
 ! !
 
+!Colormap methodsFor:'testing'!
+
+isColormap
+    ^ true
+! !
+
 !Colormap class methodsFor:'documentation'!
 
 version