title: Android:Background in styles lets elements disappear
body: <p>I changed android:background in my style:</p>
  
  <pre><code>&lt;style name="Theme.App.Base" parent="Theme.AppCompat.Light.DarkActionBar"&gt;
      &lt;item name="colorControlNormal"&gt;#747474&lt;/item&gt;
      &lt;item name="colorControlActivated"&gt;@color/colorAccentTrans&lt;/item&gt;
      &lt;item name="colorControlHighlight"&gt;@color/colorAccentTrans&lt;/item&gt;
  
      &lt;item name="colorPrimary"&gt;@color/colorPrimary&lt;/item&gt;
      &lt;item name="colorPrimaryDark"&gt;@color/colorPrimaryDark&lt;/item&gt;
      &lt;item name="colorAccent"&gt;@color/colorAccent&lt;/item&gt;
  
      &lt;item name="android:background"&gt;@color/background&lt;/item&gt;
  
  &lt;/style&gt;
  </code></pre>
  
  <p>And now some elements like my material calendar view seemed to have lot visibility and I can't figure out why.</p>
  
  <p>Here the XML of the Fragment Layout:</p>
  
  <pre><code>&lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto"
      xmlns:tools="http://schemas.android.com/tools"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:background="@color/background"
      tools:context="io.rocketfox.dreamydiary.JournalView"&gt;
  
  
  
  
  &lt;android.support.constraint.ConstraintLayout
      android:id="@+id/layout_nothingInList"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:layout_alignParentLeft="true"
      android:layout_alignParentStart="true"
      android:background="@color/background"
      android:padding="0dp"
      android:visibility="invisible"
      tools:layout_editor_absoluteX="0dp"
      tools:layout_editor_absoluteY="50dp"&gt;
  
      &lt;ImageView
          android:id="@+id/img_NoDreamsHint"
          android:layout_width="167dp"
          android:layout_height="115dp"
          android:layout_marginBottom="8dp"
          android:layout_marginEnd="8dp"
          android:layout_marginLeft="8dp"
          android:layout_marginRight="8dp"
          android:layout_marginStart="8dp"
          android:layout_marginTop="8dp"
          android:adjustViewBounds="false"
          android:cropToPadding="true"
          android:scaleType="fitCenter"
          app:layout_constraintBottom_toBottomOf="parent"
          app:layout_constraintHorizontal_bias="0.502"
          app:layout_constraintLeft_toLeftOf="parent"
          app:layout_constraintRight_toRightOf="parent"
          app:layout_constraintTop_toTopOf="parent"
          app:layout_constraintVertical_bias="0.39999998"
          app:srcCompat="@drawable/sheep" /&gt;
  
      &lt;TextView
          android:id="@+id/txt_NoDreamsHint"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_marginEnd="8dp"
          android:layout_marginLeft="8dp"
          android:layout_marginRight="8dp"
          android:layout_marginStart="8dp"
          android:text="No dreams yet"
          android:textColor="@color/splashScreenAction"
          android:textSize="24sp"
          app:layout_constraintLeft_toLeftOf="parent"
          app:layout_constraintRight_toRightOf="parent"
          app:layout_constraintTop_toBottomOf="@+id/img_NoDreamsHint" /&gt;
  
  &lt;/android.support.constraint.ConstraintLayout&gt;
  
  &lt;RelativeLayout
      android:id="@+id/layout_calendarPicker"
      android:layout_width="match_parent"
      android:layout_height="match_parent"&gt;
  
      &lt;com.prolificinteractive.materialcalendarview.MaterialCalendarView
          android:id="@+id/calendarView"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          app:mcv_allowClickDaysOutsideCurrentMonth="true"
          app:mcv_arrowColor="@color/cardview_light_background"
          app:mcv_dateTextAppearance="@style/CustomTextAppearanceDates"
          app:mcv_firstDayOfWeek="monday"
          app:mcv_headerTextAppearance="@style/CustomTextAppearanceMonth"
          app:mcv_selectionColor="@color/colorAccentTrans"
          app:mcv_tileSize="40dp"
          app:mcv_tileWidth="50dp"
          app:mcv_weekDayTextAppearance="@style/CustomTextAppearanceWeek"
          tools:layout_editor_absoluteX="8dp"
          tools:layout_editor_absoluteY="81dp" /&gt;
  
      &lt;ListView
          android:id="@+id/listDreams"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:layout_alignParentBottom="true"
          android:layout_alignParentLeft="true"
          android:layout_alignParentStart="true"
          android:layout_below="@+id/calendarView"
          android:background="@color/background" /&gt;
  
  &lt;/RelativeLayout&gt;
  
  &lt;RelativeLayout
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:padding="8dp"&gt;
  
      &lt;android.support.design.widget.FloatingActionButton
          android:id="@+id/fab_AddDream"
          style="@style/Widget.Design.FloatingActionButton"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_alignParentBottom="true"
          android:layout_alignParentEnd="true"
          android:layout_alignParentRight="true"
          android:clickable="true"
          app:layout_constraintBottom_toBottomOf="parent"
          app:layout_constraintRight_toRightOf="parent"
          app:srcCompat="@drawable/add" /&gt;
  &lt;/RelativeLayout&gt;
  
  &lt;/RelativeLayout&gt;
  </code></pre>
  
  <p>The Fab Button is the only visible thing left.</p>
  
  <p>Screenshot of Layout after background change: <a href="https://imgur.com/ElraxNw" rel="nofollow noreferrer">http://imgur.com/ElraxNw</a></p>