diff -r 000000000000 -r bca7a7e058a3 src/pyams_skin/interfaces/configuration.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_skin/interfaces/configuration.py	Thu Feb 13 11:43:31 2020 +0100
@@ -0,0 +1,107 @@
+#
+# Copyright (c) 2008-2015 Thierry Florac <tflorac AT ulthar.net>
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+
+__docformat__ = 'restructuredtext'
+
+from zope.location.interfaces import IContained
+from zope.schema import Bool, Text, TextLine
+
+from pyams_file.schema import ImageField
+
+from pyams_skin import _
+
+
+SKIN_CONFIGURATION_KEY = 'pyams_skin.configuration'
+
+
+class IConfiguration(IContained):
+    """Dynamic application global configuration
+
+    These settings are generally managed by an administrator.
+    They are used by default presentation layout.
+    """
+
+    title = TextLine(title=_("Title"),
+                     description=_("Application title displayed in title bar"),
+                     required=False)
+
+    short_title = TextLine(title=_("Short title"),
+                           description=_("Application short title visible as title prefix"),
+                           required=False)
+
+    def get_title_prefix(self, request):
+        """Get title prefix based on current navigation context"""
+
+    description = Text(title=_("Description"),
+                       description=_("Main application description"),
+                       required=False)
+
+    author = TextLine(title=_("Author"),
+                      description=_("Public author name"),
+                      required=False)
+
+    icon = ImageField(title=_("Icon"),
+                      description=_("Browser favourite icon"),
+                      required=False)
+
+    logo = ImageField(title=_("Logo"),
+                      description=_("Image containing application logo"),
+                      required=False)
+
+
+SKIN_BACK_CONFIGURATION_KEY = 'pyams_skin.back-office.configuration'
+
+
+class IBackOfficeConfiguration(IContained):
+    """Back-office configuration"""
+
+    title = TextLine(title=_("Title"),
+                     description=_("Application title visible in back-office"),
+                     required=False)
+
+    short_title = TextLine(title=_("Short title"),
+                           description=_("Application short title visible as title prefix"),
+                           required=False)
+
+    def get_title_prefix(self, request):
+        """Get title prefix based on current navigation context"""
+
+    login_header = Text(title=_("Login header"),
+                        description=_("This reStructuredText text will be displayed in login page header"),
+                        required=False)
+
+    login_footer = Text(title=_("Login footer"),
+                        description=_("This reStructuredText text will be displayed in login page footer"),
+                        required=False)
+
+    icon = ImageField(title=_("Icon"),
+                      description=_("Browser favourite icon"),
+                      required=False)
+
+    logo = ImageField(title=_("Logo"),
+                      description=_("Image containing application logo"),
+                      required=False)
+
+    login_logo = ImageField(title=_("Login logo"),
+                            description=_("Image containing application logo for login form"),
+                            required=False)
+
+    display_content_icon = Bool(title=_("Display title icon?"),
+                                description=_("Should icons be displayed into content's title area ?"),
+                                required=True,
+                                default=True)
+
+    display_shared_tool_title = Bool(title=_("Display shared tool title?"),
+                                     description=_("Should shared tool title be displayed into shared content's title "
+                                                   "area?"),
+                                     required=True,
+                                     default=True)