d25951c517
Providing a pre-built child is more efficient because we don't need to rebuild the child every tick of the animation.
Flutter Material Gallery
Demo app for the Material Design widgets implemented in Flutter.
Icon
Icon was generated using Android Asset Studio: https://romannurik.github.io/AndroidAssetStudio/icons-launcher.html#foreground.type=image&foreground.space.trim=0&foreground.space.pad=0.1&foreColor=607d8b%2C0&crop=0&backgroundShape=square&backColor=ffffff%2C100&effects=none
From the Flutter Logo: https://github.com/flutter/website/blob/master/_includes/logo.html which appears to be CC-BY 4.0.