<style name="TextAppearance.Widget.IconMenu.Item" parent="@style/TextAppearance.Small">
        <item name="textColor">@color/white</item>

to


<style name="TextAppearance.Widget.IconMenu.Item" parent="@style/TextAppearance.Small">
        <item name="textColor">@color/black</item>

<style name="Theme.ExpandedMenu" parent="@style/Theme">
        <item name="listViewStyle">@style/Widget.ListView.Menu</item>
        <item name="windowAnimationStyle">@style/Animation.OptionsPanel</item>
        <item name="background">@null</item>
        <item name="itemTextAppearance">?textAppearanceLarge</item>


to



<style name="Theme.ExpandedMenu" parent="@style/Theme">
        <item name="listViewStyle">@style/Widget.ListView.Menu</item>
        <item name="windowAnimationStyle">@style/Animation.OptionsPanel</item>
        <item name="background">@null</item>
        <item name="itemTextAppearance">?textAppearanceLargeInverse</item>