Android Question How different to define Style in B4A's manifest file and cssutils code in B4J?

[Theera]

I'm sorry that my English isn't well.

Refer to this I've studied Mark's example. I'm interested in about his addition code in Manisfest file.
I need to know if we compare between these and CSSUtils in B4J. I need some example both B4A ,B4J, B4i(if have) platforms

SetApplicationAttribute(android:theme,"@style/AppTheme")
CreateResource(values,styles.xml,
<resources>
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <item name="colorPrimary">#3F51B5</item>
        <item name="colorPrimaryDark">#303F9F</item>
        <item name="colorAccent">#FF4081</item>
    </style>
</resources>)