Updated UnDraw library. These illustrations are designed by Katerina Limpitsouni.
The reason of this library is because initial library is outdated, and a lot of new illustrations is been released.
UnDraw( color: Colors.red, illustration: UnDrawIllustration.mobile_application, placeholder: Text("Illustration is loading..."), //optional, default is the CircularProgressIndicator(). errorWidget: Icon(Icons.error_outline, color: Colors.red, size: 50), //optional, default is the Text('Could not load illustration!'). )