react native alert
//I was going through the same thing and I found a way to style it. in styles.xml add:
//In AppTheme add:
<item name="android:alertDialogTheme">@style/AlertDialogTheme</item>
//Then:
<style name="AlertDialogTheme" parent="Theme.AppCompat.Dialog.Alert">
<item name="android:background">#00397F</item>
<item name="android:colorPrimary">#00397F</item>
<item name="android:colorAccent">#0AAEEF</item>
<item name="android:buttonBarNegativeButtonStyle">@style/NegativeButtonStyle</item>
<item name="android:buttonBarPositiveButtonStyle">@style/PositiveButtonStyle</item>
</style>
<style name="NegativeButtonStyle" parent="Widget.AppCompat.Button.ButtonBar.AlertDialog">
<item name="android:textColor">#F0A90F</item>
</style>
<style name="PositiveButtonStyle" parent="Widget.AppCompat.Button.ButtonBar.AlertDialog">
<item name="android:textColor">#F0A90F</item>
</style>
//Play with it and add more customized values as needed.