According to another post, Flutter APK contains ICU-data (maybe the icudtl.dat file was meant).
But my question; what is ICU data in Flutter APK required for?
Actually, what is ICU data? I mean, is it the same as react-native's bundle (which is compiled java-script and is executed by internal react-native C++ codes)?
Isn't Flutter (or Dart) supposed to compile to native code (like to ARM and x86 *.so format native-library for Android, and to ARM for iOS)?