--- a/src/pyams_portal/portlets/spacer/interfaces.py	Fri Nov 30 14:42:57 2018 +0100
+++ b/src/pyams_portal/portlets/spacer/interfaces.py	Fri Dec 07 12:21:32 2018 +0100
@@ -10,8 +10,33 @@
 # FOR A PARTICULAR PURPOSE.
 #
 
+from zope.interface import Interface
+from zope.schema import Bool
+
 from pyams_portal.interfaces import IPortletSettings
+from pyams_utils.schema import ColorField
+
+from pyams_portal import _
 
 
 class ISpacerPortletSettings(IPortletSettings):
     """Spacer portlet settings interface"""
+
+
+class ISpacerPortletRendererSettings(Interface):
+    """Spacer portlet renderer settings"""
+
+    transparent = Bool(title=_("Transparent spacer?"),
+                       description=_("If 'no', spacer background will be defined by selected color"),
+                       required=True,
+                       default=True)
+
+    background_color = ColorField(title=_("Background color"),
+                                  description=_("Color selected for background, if transparency is disabled"),
+                                  required=False,
+                                  default='fff')
+
+    with_ruler = Bool(title=_("Horizontal ruler?"),
+                      description=_("If 'yes', an horizontal ruler will be displayed in the middle of the spacer"),
+                      required=True,
+                      default=False)