Flutter MaterialApp Widget

One of the most useful widget that decides the complete appearance, layout, transitions and many more.
Here we learn the complete deep dive of  MaterialApp widget's theme property that extends like

MaterialApp(
theme: ThemeData(
accentColor:       //1.color of the appBar and the first visual color
brightness:          //2.color of the theme like dark theme aur bright theme and the component of the project manage it accordingly
)
);