diff -r 3bdaee25ec3a -r 207ef3d0e871 src/ztfy/utils/browser/configure.zcml
--- a/src/ztfy/utils/browser/configure.zcml	Fri Oct 19 09:56:41 2012 +0200
+++ b/src/ztfy/utils/browser/configure.zcml	Tue Oct 23 15:07:24 2012 +0200
@@ -51,13 +51,13 @@
 	<z3c:widgetTemplate
 		mode="input"
 		template="templates/color_input.pt"
-		widget=".color.ColorWidget"
+		widget=".color.IColorWidget"
 		layer="z3c.form.interfaces.IFormLayer" />
 
 	<z3c:widgetTemplate
 		mode="display"
 		template="templates/color_display.pt"
-		widget=".color.ColorWidget"
+		widget=".color.IColorWidget"
 		layer="z3c.form.interfaces.IFormLayer" />
 
 	<!-- TextLine list widget -->