Index: trunk/data/maps.xsd
===================================================================
--- trunk/data/maps.xsd	(revision 9133)
+++ trunk/data/maps.xsd	(revision 9134)
@@ -689,4 +689,8 @@
 								</xs:complexType>
 							</xs:element>
+							<!--  is imagery properly georeferenced (i.e. no need to check offsets). Defaults to false. Affects showing warnings. -->
+							<xs:element name="valid-georeference" minOccurs="0" maxOccurs="1" type="xs:boolean" />
+							<!-- does imagery server supports JOSM 4326 to 3857 reprojection and non-square queries. Affects showing warnings. -->
+							<xs:element name="epsg4326to3857Supported" minOccurs="0" maxOccurs="1" type="xs:boolean" />
 						</xs:choice>
 					</xs:sequence>