How to change the background color around a DialogFragment?

I had to set android:windowIsFloating to false and android:windowBackground to my custom color in the dialog style:

styles.xml

<resources xmlns:android="http://schemas.android.com/apk/res/android">

    <style name="MyDialog" parent="@android:style/Theme.Dialog">
        <item name="android:windowFrame">@null</item>
        <item name="android:windowBackground">@color/orange_transparent</item>
        <item name="android:windowIsFloating">false</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:windowTitleStyle">@null</item>
        <item name="android:colorBackgroundCacheHint">@null</item>
        <item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item>
        <item name="android:windowSoftInputMode">stateUnspecified|adjustPan</item>
        <item name="android:gravity">center</item>
    </style>

</resources>

MyDialogFragment

public class MyDialogFragment extends DialogFragment {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setStyle(DialogFragment.STYLE_NO_TITLE, R.style.MyDialog);
    }
}