diff --git a/zkwebui/WEB-INF/zk.xml b/zkwebui/WEB-INF/zk.xml
index 584d1819af..9612e83855 100644
--- a/zkwebui/WEB-INF/zk.xml
+++ b/zkwebui/WEB-INF/zk.xml
@@ -1,35 +1,57 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
-<!-- zk.xml
-Copyright (C) 2006 Potix Corporation. All Rights Reserved.
--->
+	<!--
+		zk.xml Copyright (C) 2006 Potix Corporation. All Rights Reserved.
+	-->
 
 <zk>
 	<log>
-		<description>[Optional] Monitor i3-log.conf and register a handler for the specified log-base</description>
+		<description>[Optional] Monitor i3-log.conf and register a
+			handler for the specified log-base</description>
 		<log-base></log-base>
-	</log>
-	
+	</log>
+
 	<!--  change to false to use compress js which is much smaller -->
-	<client-config>		
-	    <debug-js>false</debug-js>
+	<client-config>
+		<debug-js>false</debug-js>
 	</client-config>
 
 	<!--
-	<language-config>
-		<addon-uri>/WEB-INF/lang-addon.xml</addon-uri>
-	</language-config>
+		<language-config> <addon-uri>/WEB-INF/lang-addon.xml</addon-uri>
+		</language-config>
 	-->
 
-	<!-- Turn on the following if used with WebLogic 9.1
-	<system-config>
+	<!--
+		Turn on the following if used with WebLogic 9.1 <system-config>
 		<cache-provider-class>org.zkoss.zk.ui.sys.GlobalDesktopCacheProvider</cache-provider-class>
-	</system-config>
+		</system-config>
 	-->
 
 	<!-- Adempiere thread session context handler -->
 	<listener>
 		<description>ADempiere WebUI Context management</description>
-		<listener-class>org.adempiere.webui.session.SessionContextListener</listener-class>
-	</listener>		
+		<listener-class>org.adempiere.webui.session.SessionContextListener
+		</listener-class>
+	</listener>
+
+	<library-property>
+		<name>org.zkoss.zul.theme.fontSizeM
+		</name>
+		<value>11px</value>
+	</library-property>
+	<library-property>
+		<name>org.zkoss.zul.theme.fontSizeS
+		</name>
+		<value>10px</value>
+	</library-property>
+	<library-property>
+		<name>org.zkoss.zul.theme.fontSizeXS
+		</name>
+		<value>9px</value>
+	</library-property>
+	<library-property>
+		<name>org.zkoss.zul.theme.fontSizeMS
+		</name>
+		<value>11px</value>
+	</library-property>
 </zk>