Gray Mackall 9eedb6ab86 Make scenario app have translucent splash screen so it doesn't affect screenshot colors (flutter/engine#51329) ...

Makes the scenario app splash screen have a translucent color, so it doesn't end up overlaying on screenshots.

Before:
[device-2024-03-07-152047.webm](https://github.com/flutter/flutter/assets/34871572/a9b7a1f9-57ab-4eda-93e5-5ca70032cbef)

After:
[translucentsplash.webm](https://github.com/flutter/engine/assets/34871572/a6eb6407-add0-4004-83f9-4e0a5c1bb6f6)

This sort of fixes https://github.com/flutter/flutter/issues/144657? The issue is still odd to me, though, because I don't know why the test runner wouldn't be waiting properly for the splash screen.

Bonus, this is what it looks like if we [change the runner](a70a0abdec/testing/scenario_app/bin/run_android_tests.dart (L352)) to not use animations, with `--no-window-animation` (but don't include the splash screen change):
[no_animation_example.webm](https://github.com/flutter/engine/assets/34871572/0c8665a3-b546-4bbd-b7e1-00851c48e1ff)
You can see there is still a moment of color change at the end of tests (ignore the very first test I was alt tabbing and lagged out my emulator).

[C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style

2024-03-11 23:04:55 +00:00

..

src/flutter

Make scenario app have translucent splash screen so it doesn't affect screenshot colors (flutter/engine#51329)

2024-03-11 23:04:55 +00:00