I made https://github.com/flyskywhy/react-native-emoji-modal-no-vector/blob/main/Icon.js which use react-native-svg to custom my icon, and even simple that it does not use .svg file, but just use svg xml copy from e.g. https://yesicon.app/mdi/pets.

Why react-native-svg not react-native-vector-icons, because I found react-native-vector-icons is too complex to install especially on iOS.