diff --git a/vtm-playground/src/org/oscim/test/BitmapLayerTest.java b/vtm-playground/src/org/oscim/test/BitmapLayerTest.java
index 426d0dd3..cebbfaed 100644
--- a/vtm-playground/src/org/oscim/test/BitmapLayerTest.java
+++ b/vtm-playground/src/org/oscim/test/BitmapLayerTest.java
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2016 devemux86
+ *
+ * This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
+ *
+ * This program is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 package org.oscim.test;
 
 import com.badlogic.gdx.Input;
@@ -9,7 +25,7 @@ import org.oscim.renderer.MapRenderer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import static org.oscim.tiling.source.bitmap.DefaultSources.HD_HILLSHADE;
+import static org.oscim.tiling.source.bitmap.DefaultSources.HIKEBIKE_HILLSHADE;
 import static org.oscim.tiling.source.bitmap.DefaultSources.OPENSTREETMAP;
 import static org.oscim.tiling.source.bitmap.DefaultSources.STAMEN_TONER;
 import static org.oscim.tiling.source.bitmap.DefaultSources.STAMEN_WATERCOLOR;
@@ -38,7 +54,7 @@ public class BitmapLayerTest extends GdxMap {
                 mMap.layers().remove(mShaded);
                 mShaded = null;
             } else {
-                mShaded = new BitmapTileLayer(mMap, HD_HILLSHADE.build());
+                mShaded = new BitmapTileLayer(mMap, HIKEBIKE_HILLSHADE.build());
                 mMap.layers().add(mShaded);
             }
             return true;
diff --git a/vtm/src/org/oscim/tiling/source/bitmap/DefaultSources.java b/vtm/src/org/oscim/tiling/source/bitmap/DefaultSources.java
index 12fdbecb..af6b1b15 100644
--- a/vtm/src/org/oscim/tiling/source/bitmap/DefaultSources.java
+++ b/vtm/src/org/oscim/tiling/source/bitmap/DefaultSources.java
@@ -1,5 +1,6 @@
 /*
  * Copyright 2016 Andrey Novikov
+ * Copyright 2016 devemux86
  *
  * This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
  *
@@ -21,10 +22,17 @@ import org.oscim.tiling.source.bitmap.BitmapTileSource.Builder;
 
 /**
  * Do not use in applications unless you read through and comply to
- * their terms of use! Only added here for testing puposes.
+ * their terms of use! Only added here for testing purposes.
  */
 public class DefaultSources {
 
+    private static final FadeStep[] FADE_STEPS = new FadeStep[]{
+            new FadeStep(0, 8 - 1, 1, 0.7f),
+            // dont fade between zoom-min/max
+            // fade above zoom max + 2, interpolate 1 to 0
+            new FadeStep(8 - 1, 8 + 1, 0.7f, 0)
+    };
+
     public static Builder<?> OPENSTREETMAP = BitmapTileSource.builder()
             .url("http://tile.openstreetmap.org")
             .zoomMax(18);
@@ -47,36 +55,11 @@ public class DefaultSources {
             .tilePath("/{Z}/{X}/{Y}.jpg")
             .zoomMax(6);
 
-    final static FadeStep[] fadeSteps = new FadeStep[]{
-            new FadeStep(0, 8 - 1, 1, 0.7f),
-            // dont fade between zoom-min/max
-            // fade above zoom max + 2, interpolate 1 to 0
-            new FadeStep(8 - 1, 8 + 1, 0.7f, 0)
-    };
-
-    public static Builder<?> MAPQUEST_AERIAL = BitmapTileSource.builder()
-            .url("http://otile1.mqcdn.com/tiles/1.0.0/sat")
-            .tilePath("/{Z}/{X}/{Y}.jpg")
-            .fadeSteps(fadeSteps)
-            .zoomMax(8);
-
     public static Builder<?> NE_LANDCOVER = BitmapTileSource.builder()
             .url("http://opensciencemap.org/tiles/ne")
-            .fadeSteps(fadeSteps)
+            .fadeSteps(FADE_STEPS)
             .zoomMax(8);
 
-    public static Builder<?> ARCGIS_RELIEF = BitmapTileSource.builder()
-            .url("http://server.arcgisonline.com/ArcGIS/rest/services" +
-                    "/World_Shaded_Relief/MapServer/tile/")
-            .tilePath("{Z}/{Y}/{X}")
-            .zoomMax(13);
-
-    public static Builder<?> HD_HILLSHADE = BitmapTileSource.builder()
-            .url("http://korona.geog.uni-heidelberg.de/tiles/asterh/")
-            .tilePath("?x={X}&y={Y}&z={Z}")
-            .zoomMin(2)
-            .zoomMax(16);
-
     public static Builder<?> HIKEBIKE = BitmapTileSource.builder()
             .url("http://tiles.wmflabs.org/hikebike")
             .tilePath("/{Z}/{X}/{Y}.png")
@@ -86,15 +69,4 @@ public class DefaultSources {
             .url("http://tiles.wmflabs.org/hillshading")
             .tilePath("/{Z}/{X}/{Y}.png")
             .zoomMax(14);
-
-    /**
-     * https://github.com/opensciencemap/vtm/issues/18
-     * https://developers.google.com/maps/faq
-     */
-
-    public static Builder<?> GOOGLE_MAPS = BitmapTileSource.builder()
-            .url("INSERT URL")
-            .tilePath("/vt/x={X}&y={Y}&z={Z}&s=Galileo&scale=2")
-            .zoomMin(1)
-            .zoomMax(20);
 }