@native-base/react-native-template/template/android/app/src/main/res/values/styles.xml

The base template for react-native with NativeBase.

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.DayNight.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="android:textColor">#000000</item>
    </style>

</resources>