Gadgetbridge/app/src/main/res/values/styles.xml

<resources>

    <style name="GadgetbridgeTheme" parent="@android:style/Theme.Holo.Light.DarkActionBar">
        <item name="android:actionBarStyle">@style/GadgetbridgeActionBar</item>
        <item name="android:actionBarWidgetTheme">@style/GadgetbridgeActionBarWidget</item>

    </style>

    <style name="GadgetbridgeActionBar" parent="@android:style/Widget.Holo.Light.ActionBar.Solid.Inverse">
        <item name="android:background">@color/primary</item>
        <item name="android:backgroundStacked">@color/primarydark</item>
        <item name="android:displayOptions">showHome|showTitle</item>
        <item name="android:icon">@android:color/transparent</item>
    </style>

    <style name="GadgetbridgeActionBarWidget" parent="android:Theme.Holo.Light">
        <item name="android:popupMenuStyle">@android:style/Widget.Holo.Light.PopupMenu</item>
        <item name="android:dropDownListViewStyle">@android:style/Widget.Holo.Light.ListView</item>
    </style>


</resources>