I can customize the background of the selected option on a spinner dropdown using:
<item name="android:spinnerStyle">@style/customSpinner</item>
<style name="customSpinner" parent="@android:style/Widget.Holo.Light.Spinner">
<item name="android:textColor">#000000</item>
<item name="android:background">#000000</item>
</style>
But I can't manage to change the background and textcolor of the list of options that the dropdown has. How do I achieve that?