Inactive work theme theme

I want to have a dark dialog theme, so I define the following:

<style name="AppThemeDialogActivityDark" parent="Theme.AppCompat.Dialog">
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>

    <!-- dark toolbar + dark popup menu -->
    <item name="toolbarTheme">@style/ThemeOverlay.AppCompat.Dark.ActionBar</item>
    <item name="popupTheme">@style/ThemeOverlay.AppCompat.Dark</item>


    <!-- trying to forcefully set the background and text color -->
    <item name="android:windowBackground">@android:color/background_dark</item>
    <item name="android:textColor">@color/white</item>

    <item name="android:minWidth">320dp</item>

    <item name="windowNoTitle">true</item>
    <item name="windowActionBar">false</item>
</style>

      

        
        
        
      

    

Activity:

public class FeedbackActivity extends AppCompatActivity
{
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        // darkTheme returns true!!!
        setTheme(MainApp.getPrefs().darkTheme() ? R.style.AppThemeDialogActivityDark : R.style.AppThemeDialogActivity);
        super.onCreate(savedInstanceState);

        mBinding = DataBindingUtil.setContentView(this, R.layout.activity_feedback);
    }
}

      

        
        
        
      

    

Markup:

<?xml version="1.0" encoding="utf-8"?>
<layout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    xmlns:app="http://schemas.android.com/apk/res-auto" >

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            android:elevation="4dp"
            app:theme="?toolbarTheme"/>

        <ListView
            android:padding="12dp"
            android:id="@+id/lvFeedback"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

        <ScrollView
            android:id="@+id/svFeedback"
            android:layout_width="wrap_content"
            android:layout_weight="1"
            android:layout_height="0dp">

                <TextView
                    android:padding="12dp"
                    android:id="@+id/tvFeedback"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content" />

        </ScrollView>

        <Button
            android:padding="12dp"
            android:id="@+id/btButton"
            style="?borderlessButtonStyle"
            android:elevation="4dp"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

    </LinearLayout>

</layout>

      

        
        
        
      

    

What am I missing here? Why does my activity dialog have a white background instead of a dark one ???

EDIT - Interesting details

• Setting up background images android:background="?android:windowBackground"
  
  doesn't work. But I have to do this for the ListView and for the TextView. That this theme attribute works, theme is applied correctly, it seems that the default background is defined in another theme attribute in the dialog theme?
• My tags ListView
  
  are correct as well, just using android.R.layout.simple_list_item_1
  
  as layout, I don't have to set their background / text colors, they are for dark theme correctly, but do not display if I don 't set background ListView
  
  manually as above