Steps to Reproduce

Hi thanks for the wonderful Flutter! I have some images (1.1MB) that should only be used in Android, not iOS. Therefore, I want to remove those images from the IPA file in iOS. I have read the official doc, but it did not mention things like this :/

Expected results:

Give some options, such as (pubspec.yaml):

flutter:
  assets:
    android:
      - some_images_only_in_android/
    ios:
      - some_images_only_in_ios/
   all:
      - some_images_for_both/

Actual results: No such feature