
Makes the android_semantics_testing test not fail for newer versions of Talkback. Also, since the test now depends on pub_semver, upgraded the pubspec files. The only substantive changes in the PR are in dev/integration_tests/android_semantics_testing/test_driver/main_test.dart
Flutter gallery
An older copy of the Flutter gallery demo application used for integration testing.
For the current Flutter Gallery app sample, see this repo: https://github.com/flutter/gallery
Icon
Android launcher icons were generated using Android Asset Studio: https://romannurik.github.io/AndroidAssetStudio/icons-launcher.html#foreground.type=image&foreground.space.trim=1&foreground.space.pad=0.1&foreColor=607d8b%2C0&crop=0&backgroundShape=square&backColor=fafafa%2C100&effects=none