515909ecb6
Reason for revert: The package:flutter_gallery_assets has removed some images which are required for the examples/flutter_gallery, so the gallery build is failing (only discovered after landing, since gallery doesn't seem to get built during github PR presubmit checks)
This directory contains tools and resources that the Flutter team uses during development of the framework. The tools in this directory should not be necessary for developing Flutter applications, though of course they may be interesting if you are curious.