Dart APIunself_styleUnSymbolSizesemojiM emojiM constant Null safety TextStyle const emojiM Implementation static const emojiM = TextStyle(fontSize: M, height: 1); unself_style unself_style UnSymbolSizes emojiM constant UnSymbolSizes class Constructors UnSymbolSizes Properties hashCode runtimeType Methods noSuchMethod toString Operators operator == Constants emojiL emojiM emojiXL Full L M None S XL XS