diff --git a/src/org/oscim/theme/osmarender/tronrender.xml b/src/org/oscim/theme/osmarender/tronrender.xml
index 954b5a4a..e6024484 100644
--- a/src/org/oscim/theme/osmarender/tronrender.xml
+++ b/src/org/oscim/theme/osmarender/tronrender.xml
@@ -508,7 +508,26 @@
     
     <!-- highway -->
     <rule e="way" k="highway" v="*">
-      <rule e="way" k="*" v="*" zoom-min="5" zoom-max="10">
+       <rule e="way" k="*" v="*" zoom-min="3" zoom-max="5">
+ 			  <rule e="way" k="area" v="~|no|false">
+        <!--   <rule e="way" k="*" v="secondary|primary_link" zoom-min="9">
+            <line stroke="#f2df6d" width="1.3" cap="butt" fixed="true" fade="9"/>
+          </rule> -->
+
+          <rule e="way" k="*" v="route_primary" zoom-min="3">
+            <line stroke="#f2df6d" width="1.4" cap="butt" fixed="true" fade="3"/>
+          </rule>
+
+        <!--   <rule e="way" k="*" v="route_trunk" zoom-min="3">
+            <line stroke="#fed6a3" width="1.4" cap="butt" fixed="true" fade="3"/>
+          </rule>
+ -->
+          <rule e="way" k="*" v="route_motorway|route_trunk">
+            <line stroke="#eec693" width="1.5" cap="butt" fixed="true" fade="3"/>
+          </rule>
+        </rule>
+      </rule>
+      <rule e="way" k="*" v="*" zoom-min="6" zoom-max="10">
  			  <rule e="way" k="area" v="~|no|false">
           <rule e="way" k="*" v="secondary|primary_link" zoom-min="9">
             <line stroke="#ddf2df6d" width="1.8" cap="butt" fixed="true" fade="9"/>
diff --git a/src/org/oscim/view/MapView.java b/src/org/oscim/view/MapView.java
index aa8941e4..f413293c 100644
--- a/src/org/oscim/view/MapView.java
+++ b/src/org/oscim/view/MapView.java
@@ -457,6 +457,9 @@ public class MapView extends RelativeLayout {
 			throw new IllegalArgumentException("render theme must not be null");
 		}
 
+		if (internalRenderTheme.name() == mRenderTheme)
+			return true;
+
 		boolean ret = setRenderTheme((Theme) internalRenderTheme);
 		if (ret) {
 			mRenderTheme = internalRenderTheme.name();