[Galaxy Note 3 Themes and Apps] lacoursiere18:
Yes.. You mean in fwres.. I did not see anything that would over ride it. But it has to be something.. I searched that style in the smali too to make sure it wasnt being set there.. Nada.. I will post those layouts so you can take a look as well..

res\layout-sw360dp-xhdpi/tw_alert_dialog_holo.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:orientation="vertical" android:id="@id/parentPanel" android:layout_width="fill_parent" android:layout_height="wrap_content"
xmlns:android="http://schemas.android.com/apk/res/android">
<LinearLayout android:orientation="vertical" android:id="@id/topPanel" android:layout_width="fill_parent" android:layout_height="wrap_content">
<View android:id="@id/titleDividerTop" android:background="@null" android:visibility="gone" android:layout_width="fill_parent" android:layout_height="1.0dip" />
<LinearLayout android:gravity="left|center" android:orientation="horizontal" android:id="@id/title_template" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginLeft="?listPreferredItemPaddingLeft" android:layout_marginRight="?listPreferredItemPaddingRight" android:minHeight="@dimen/tw_alert_dialog_title_height">
<ImageView android:id="@id/icon" android:paddingRight="8.0dip" android:layout_width="40.0dip" android:layout_height="32.0dip" android:src="@null" />
<com.android.internal.widget.DialogTitle android:id="@id/alertTitle" android:fadingEdge="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginTop="8.0dip" android:layout_marginBottom="8.0dip" android:singleLine="true" style="?android:attr/windowTitleStyle" />
</LinearLayout>
<View android:id="@id/titleDivider" android:background="@null" android:visibility="gone" android:layout_width="fill_parent" android:layout_height="1.0dip" />
</LinearLayout>
<LinearLayout android:orientation="vertical" android:id="@id/contentPanel" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1.0">
<ScrollView android:id="@id/scrollView" android:clipToPadding="false" android:layout_width="fill_parent" android:layout_height="wrap_content">
<TextView android:id="@id/message" android:paddingLeft="?listPreferredItemPaddingLeft" android:paddingTop="23.0dip" android:paddingRight="?listPreferredItemPaddingRight" android:paddingBottom="22.0dip" android:layout_width="fill_parent" android:layout_height="wrap_content" android:minHeight="21.0dip" style="?android:attr/textAppearance" />
</ScrollView>
</LinearLayout>
<FrameLayout android:id="@id/customPanel" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1.0">
<FrameLayout android:id="@id/custom" android:layout_width="fill_parent" android:layout_height="wrap_content" style="?android:attr/textAppearance" />
</FrameLayout>
<LinearLayout android:orientation="vertical" android:id="@id/buttonPanel" android:layout_width="fill_parent" android:layout_height="wrap_content">
<LinearLayout android:orientation="horizontal" android:paddingLeft="1.0dip" android:paddingTop="4.0dip" android:paddingRight="1.0dip" android:paddingBottom="4.0dip" android:layout_width="fill_parent" android:layout_height="wrap_content" android:minHeight="47.0dip" android:measureWithLargestChild="true" style="?android:attr/buttonBarStyle">
<Button android:textStyle="bold" android:layout_gravity="left" android:id="@id/button2" android:layout_width="0.0dip" android:layout_height="fill_parent" android:minHeight="@dimen/tw_alert_dialog_button_bar_height" android:maxLines="2" android:layout_weight="1.0" style="?android:attr/buttonBarButtonStyle" />
<Button android:textStyle="bold" android:layout_gravity="center_horizontal" android:id="@id/button3" android:layout_width="0.0dip" android:layout_height="fill_parent" android:minHeight="@dimen/tw_alert_dialog_button_bar_height" android:maxLines="2" android:layout_weight="1.0" style="?android:attr/buttonBarButtonStyle" />
<Button android:textStyle="bold" android:layout_gravity="right" android:id="@id/button1" android:layout_width="0.0dip" android:layout_height="fill_parent" android:minHeight="@dimen/tw_alert_dialog_button_bar_height" android:maxLines="2" android:layout_weight="1.0" style="?android:attr/buttonBarButtonStyle" />
</LinearLayout>
</LinearLayout>
</LinearLayout>

res\layout\tw_alert_dialog_holo.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:orientation="vertical" android:id="@id/parentPanel" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginLeft="8.0dip" android:layout_marginRight="8.0dip"
xmlns:android="http://schemas.android.com/apk/res/android">
<LinearLayout android:orientation="vertical" android:id="@id/topPanel" android:layout_width="fill_parent" android:layout_height="wrap_content">
<View android:id="@id/titleDividerTop" android:background="@null" android:visibility="gone" android:layout_width="fill_parent" android:layout_height="1.0dip" />
<LinearLayout android:gravity="left|center" android:orientation="horizontal" android:id="@id/title_template" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginLeft="?listPreferredItemPaddingLeft" android:layout_marginRight="?listPreferredItemPaddingRight" android:minHeight="@dimen/tw_alert_dialog_title_height">
<ImageView android:id="@id/icon" android:paddingRight="8.0dip" android:layout_width="40.0dip" android:layout_height="32.0dip" android:src="@null" />
<com.android.internal.widget.DialogTitle android:id="@id/alertTitle" android:fadingEdge="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginTop="8.0dip" android:layout_marginBottom="8.0dip" android:singleLine="true" style="?android:attr/windowTitleStyle" />
</LinearLayout>
<View android:id="@id/titleDivider" android:background="@null" android:visibility="gone" android:layout_width="fill_parent" android:layout_height="1.0dip" />
</LinearLayout>
<LinearLayout android:orientation="vertical" android:id="@id/contentPanel" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1.0">
<ScrollView android:id="@id/scrollView" android:clipToPadding="false" android:layout_width="fill_parent" android:layout_height="wrap_content">
<TextView android:id="@id/message" android:paddingLeft="?listPreferredItemPaddingLeft" android:paddingTop="23.0dip" android:paddingRight="?listPreferredItemPaddingRight" android:paddingBottom="22.0dip" android:layout_width="fill_parent" android:layout_height="wrap_content" android:minHeight="21.0dip" style="?android:attr/textAppearance" />
</ScrollView>
</LinearLayout>
<FrameLayout android:id="@id/customPanel" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1.0">
<FrameLayout android:id="@id/custom" android:layout_width="fill_parent" android:layout_height="wrap_content" style="?android:attr/textAppearance" />
</FrameLayout>
<LinearLayout android:orientation="vertical" android:id="@id/buttonPanel" android:layout_width="fill_parent" android:layout_height="wrap_content">
<LinearLayout android:orientation="horizontal" android:paddingLeft="1.0dip" android:paddingTop="4.0dip" android:paddingRight="1.0dip" android:paddingBottom="4.0dip" android:layout_width="fill_parent" android:layout_height="wrap_content" android:minHeight="47.0dip" android:measureWithLargestChild="true" style="?android:attr/buttonBarStyle">
<Button android:layout_gravity="left" android:id="@id/button2" android:layout_width="0.0dip" android:layout_height="fill_parent" android:minHeight="@dimen/tw_alert_dialog_button_bar_height" android:maxLines="2" android:layout_weight="1.0" style="?android:attr/buttonBarButtonStyle" />
<Button android:layout_gravity="center_horizontal" android:id="@id/button3" android:layout_width="0.0dip" android:layout_height="fill_parent" android:minHeight="@dimen/tw_alert_dialog_button_bar_height" android:maxLines="2" android:layout_weight="1.0" style="?android:attr/buttonBarButtonStyle" />
<Button android:layout_gravity="right" android:id="@id/button1" android:layout_width="0.0dip" android:layout_height="fill_parent" android:minHeight="@dimen/tw_alert_dialog_button_bar_height" android:maxLines="2" android:layout_weight="1.0" style="?android:attr/buttonBarButtonStyle" />
</LinearLayout>
</LinearLayout>
</LinearLayout>

res/layout/tw_select_dialog_holo.xml

<?xml version="1.0" encoding="utf-8"?>
<view android:id="@id/select_dialog_listview" android:scrollbars="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:cacheColorHint="@null" android:divider="?listDividerAlertDialog" android:overScrollMode="ifContentScrolls" class="com.android.internal.app.AlertController$RecycleListView"
xmlns:android="http://schemas.android.com/apk/res/android" />

I believe if it was being over ridden it would have to be in the first two layouts.. The others are select and progress