diff --git a/app/src/main/java/it/danieleverducci/ojo/ui/SurveillanceFragment.java b/app/src/main/java/it/danieleverducci/ojo/ui/SurveillanceFragment.java
index fc0ee80..a2c5d0a 100644
--- a/app/src/main/java/it/danieleverducci/ojo/ui/SurveillanceFragment.java
+++ b/app/src/main/java/it/danieleverducci/ojo/ui/SurveillanceFragment.java
@@ -87,7 +87,7 @@ public class SurveillanceFragment extends Fragment implements MediaPlayer.EventL
                 } else {
                     // Cameras are less than the maximum number of cells in grid: fill remaining cells with empty views
                     View ev = new View(getContext());
-                    ev.setBackgroundColor(Color.BLUE);
+                    ev.setBackgroundColor(getResources().getColor(R.color.purple_500));
                     LinearLayout.LayoutParams evParams = new LinearLayout.LayoutParams(
                             0,
                             LinearLayout.LayoutParams.MATCH_PARENT,
diff --git a/app/src/main/res/layout/fragment_add_stream.xml b/app/src/main/res/layout/fragment_add_stream.xml
index 68b5ce4..8b2525a 100644
--- a/app/src/main/res/layout/fragment_add_stream.xml
+++ b/app/src/main/res/layout/fragment_add_stream.xml
@@ -12,7 +12,10 @@
         android:id="@+id/stream_url"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:text="@string/add_stream_placeholder_url"/>
+        android:hint="@string/add_stream_placeholder_url"
+        android:lines="1"
+        android:maxLines="1"
+        android:inputType="textUri"/>
     <Button
         android:id="@+id/save"
         android:layout_width="match_parent"
diff --git a/app/src/main/res/layout/fragment_surveillance.xml b/app/src/main/res/layout/fragment_surveillance.xml
index a0541c1..a70f98e 100644
--- a/app/src/main/res/layout/fragment_surveillance.xml
+++ b/app/src/main/res/layout/fragment_surveillance.xml
@@ -6,6 +6,7 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical"
-    tools:context=".ui.AddStreamFragment">
+    tools:context=".ui.AddStreamFragment"
+    android:background="@color/purple_500">
 
 </LinearLayout>