grey constant Null safety
Implementation
static const MaterialColor grey = MaterialColor(
_greyPrimaryValue,
<int, Color>{
50: Color(0xFFFAFAFA),
100: Color(0xFFF5F5F5),
200: Color(0xFFEEEEEE),
300: Color(0xFFE0E0E0),
350: Color(0xFFD6D6D6),
400: Color(0xFFBDBDBD),
500: Color(_greyPrimaryValue),
600: Color(0xFF757575),
700: Color(0xFF616161),
800: Color(0xFF424242),
850: Color(0xFF303030),
900: Color(0xFF212121),
},
);