indigo constant Null safety
Implementation
static const MaterialColor indigo = MaterialColor(
_indigoPrimaryValue,
<int, Color>{
50: Color(0xFFE8EAF6),
100: Color(0xFFC5CAE9),
200: Color(0xFF9FA8DA),
300: Color(0xFF7986CB),
400: Color(0xFF5C6BC0),
500: Color(_indigoPrimaryValue),
600: Color(0xFF3949AB),
700: Color(0xFF303F9F),
800: Color(0xFF283593),
900: Color(0xFF1A237E),
},
);