Dart APIunself_styleUnFontWeightsemiBold semiBold constant Null safety FontWeight const semiBold FontWeight value of w600 Implementation static const FontWeight semiBold = FontWeight.w600; unself_style unself_style UnFontWeight semiBold constant UnFontWeight class Constructors UnFontWeight Properties hashCode runtimeType Methods noSuchMethod toString Operators operator == Constants black bold extraBold extraLight light medium regular semiBold thin