blueGrey constant Null safety
Implementation
static const MaterialColor blueGrey = MaterialColor(
_blueGreyPrimaryValue,
<int, Color>{
50: Color(0xFFECEFF1),
100: Color(0xFFCFD8DC),
200: Color(0xFFB0BEC5),
300: Color(0xFF90A4AE),
400: Color(0xFF78909C),
500: Color(_blueGreyPrimaryValue),
600: Color(0xFF546E7A),
700: Color(0xFF455A64),
800: Color(0xFF37474F),
900: Color(0xFF263238),
},
);