diff --git a/unity/demo/Assets/Resources/Materials/Default.mat b/unity/demo/Assets/Resources/Materials/Default.mat
index 95cf4917..7d056790 100644
Binary files a/unity/demo/Assets/Resources/Materials/Default.mat and b/unity/demo/Assets/Resources/Materials/Default.mat differ
diff --git a/unity/demo/Assets/Resources/Shaders/VertexColorGeneric.shader b/unity/demo/Assets/Resources/Shaders/VertexColorGeneric.shader
index 5e811398..5defd3d1 100644
--- a/unity/demo/Assets/Resources/Shaders/VertexColorGeneric.shader
+++ b/unity/demo/Assets/Resources/Shaders/VertexColorGeneric.shader
@@ -21,8 +21,8 @@
 
         struct Input {
             float2 uv_MainTex;
-            float2 uv2_MainTex2;
-            float2 uv3_MainTex3;
+            float2 uv2_MainTex2 : TEXCOORD1;
+            float2 uv3_MainTex3 : TEXCOORD2;
             float4 color : COLOR;
         };
 
diff --git a/unity/demo/Assets/Resources/Textures/terrain_textures.png b/unity/demo/Assets/Resources/Textures/terrain_textures.png
new file mode 100644
index 00000000..ce45452e
Binary files /dev/null and b/unity/demo/Assets/Resources/Textures/terrain_textures.png differ
diff --git a/unity/demo/Assets/Resources/Textures/terrain_textures.png.meta b/unity/demo/Assets/Resources/Textures/terrain_textures.png.meta
new file mode 100644
index 00000000..f9742219
--- /dev/null
+++ b/unity/demo/Assets/Resources/Textures/terrain_textures.png.meta
@@ -0,0 +1,57 @@
+fileFormatVersion: 2
+guid: 0c422edd476f66d4fa58838a870f020f
+timeCreated: 1475874236
+licenseType: Free
+TextureImporter:
+  fileIDToRecycleName: {}
+  serializedVersion: 2
+  mipmaps:
+    mipMapMode: 0
+    enableMipMap: 1
+    linearTexture: 0
+    correctGamma: 0
+    fadeOut: 0
+    borderMipMap: 0
+    mipMapFadeDistanceStart: 1
+    mipMapFadeDistanceEnd: 3
+  bumpmap:
+    convertToNormalMap: 0
+    externalNormalMap: 0
+    heightScale: 0.25
+    normalMapFilter: 0
+  isReadable: 0
+  grayScaleToAlpha: 0
+  generateCubemap: 0
+  cubemapConvolution: 0
+  cubemapConvolutionSteps: 7
+  cubemapConvolutionExponent: 1.5
+  seamlessCubemap: 0
+  textureFormat: -1
+  maxTextureSize: 2048
+  textureSettings:
+    filterMode: 1
+    aniso: -1
+    mipBias: -1
+    wrapMode: 1
+  nPOTScale: 1
+  lightmap: 0
+  rGBM: 0
+  compressionQuality: 50
+  allowsAlphaSplitting: 0
+  spriteMode: 0
+  spriteExtrude: 1
+  spriteMeshType: 1
+  alignment: 0
+  spritePivot: {x: 0.5, y: 0.5}
+  spriteBorder: {x: 0, y: 0, z: 0, w: 0}
+  spritePixelsToUnits: 100
+  alphaIsTransparency: 0
+  textureType: -1
+  buildTargetSettings: []
+  spriteSheet:
+    sprites: []
+    outline: []
+  spritePackingTag: 
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/unity/demo/Assets/Scripts/Environment/InstallationApi.cs b/unity/demo/Assets/Scripts/Environment/InstallationApi.cs
index 2f709689..b737a9d0 100644
--- a/unity/demo/Assets/Scripts/Environment/InstallationApi.cs
+++ b/unity/demo/Assets/Scripts/Environment/InstallationApi.cs
@@ -10,6 +10,7 @@ namespace Assets.Scripts.Environment
     /// <summary> Provides installation API. </summary>
     internal static class InstallationApi
     {
+        private const string Version = "1.1";
         private const string MarkerFileName = "install_log.txt";
 
         /// <summary> Ensures required filesystem structure. Should be called from main thread. </summary>
@@ -41,6 +42,7 @@ private static IEnumerable<string> GetMapCssFileNames()
                 "z14.mapcss",
                 "z14-lines.mapcss",
                 "z14-polygons.mapcss",
+                "z16.txt",
                 "z16.mapcss",
                 "z16-buildings.mapcss",
                 "z16-misc.mapcss",
@@ -90,12 +92,13 @@ private static IEnumerable<string> GetDirectories()
 
         private static bool IsInstalled()
         {
-            return File.Exists(Path.Combine(EnvironmentApi.ExternalDataPath, MarkerFileName));
+            var file = Path.Combine(EnvironmentApi.ExternalDataPath, MarkerFileName);
+            return File.Exists(file) && File.ReadAllText(file) == Version;
         }
 
         private static void MarkAsInstalled()
         {
-            File.Create(Path.Combine(EnvironmentApi.ExternalDataPath, MarkerFileName));
+            File.WriteAllText(Path.Combine(EnvironmentApi.ExternalDataPath, MarkerFileName), Version);
         }
 
         private static void CopyFiles(IEnumerable<string> files, ITrace trace)
diff --git a/unity/library/UtyMap.Unity/Properties/AssemblyInfo.cs b/unity/library/UtyMap.Unity/Properties/AssemblyInfo.cs
index 0e5dd4f3..5238b27c 100644
--- a/unity/library/UtyMap.Unity/Properties/AssemblyInfo.cs
+++ b/unity/library/UtyMap.Unity/Properties/AssemblyInfo.cs
@@ -12,7 +12,7 @@
 // The following GUID is for the ID of the typelib if this project is exposed to COM
 [assembly: Guid("97791a51-a81b-45d4-a6fc-5dfa9ebcc603")]
 
-[assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyFileVersion("1.0.*")]
+[assembly: AssemblyVersion("1.1.*")]
+[assembly: AssemblyFileVersion("1.1.*")]
 
 [assembly: InternalsVisibleTo("UtyMap.Unity.Tests")]