Make blogs opaque

app/src/main/res/layout/fragment_news.xml

@@ -2,7 +2,8 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context="app.insti.fragment.NewsFragment">
+    tools:context="app.insti.fragment.NewsFragment"
+    android:background="?attr/themeColor">
 
     <android.support.v4.widget.SwipeRefreshLayout
         android:id="@+id/news_swipe_refresh_layout"

app/src/main/res/layout/fragment_placement_blog.xml

@@ -2,6 +2,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:background="?attr/themeColor"
     tools:context="app.insti.fragment.PlacementBlogFragment">
 
     <android.support.v4.widget.SwipeRefreshLayout

app/src/main/res/layout/fragment_training_blog.xml

@@ -2,6 +2,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:background="?attr/themeColor"
     tools:context="app.insti.fragment.TrainingBlogFragment">
 
     <android.support.v4.widget.SwipeRefreshLayout