Does Flutter come with a framework?

Yes! Flutter ships with a modern react-style framework.
Flutter’s framework is designed to be layered and
customizable (and optional). Developers can choose to
use only parts of the framework, or even replace
upper layers of the framework entirely.

Does Flutter come with widgets?

Yes! Flutter ships with a set of
high-quality Material Design and Cupertino
(iOS-style) widgets, layouts, and themes.
Of course, these widgets are only a starting point.
Flutter is designed to make it easy to create your own
widgets, or customize the existing widgets.

Does Flutter support Material Design?

Yes! The Flutter and Material teams collaborate closely,
and Material is fully supported. A number of examples
of this are shown in the MDC-103 Flutter:
Material Theming codelab.

Does Flutter come with a testing framework?