Fundamentals tutorial has no styles

[Nixxen]

https://docs.swmansion.com/react-native-reanimated/docs/fundamentals/shared-values

Trying to understand how the basics work, but missing styles are a hindrance.
Where can I find the styles that are referenced in
<Animated.View style={[styles.box, defaultSpringStyles]} />?

[Nixxen]

For anyone finding this later, this stylesheet works. It's not as pretty as the example in the tutorial, but it gets the point across.

import { StyleSheet } from "react-native";

const styles = StyleSheet.create({
    box: {
        backgroundColor: "#33691E",
        width: 40,
        height: 40,
        borderRadius: 9,
        justifyContent: "center",
        marginTop: 20,
    },
});