merge method

Implementation

@override
FlyTextStyleToken merge(FlyToken<TextStyle> other) {
  if (other is! FlyTextStyleToken) return this;

  return copyWith(
    xs: other.xs,
    sm: other.sm,
    base: other.base,
    lg: other.lg,
    xl: other.xl,
    xl2: other.xl2,
    xl3: other.xl3,
    xl4: other.xl4,
    xl5: other.xl5,
    xl6: other.xl6,
    xl7: other.xl7,
    xl8: other.xl8,
    xl9: other.xl9,
    extras: {...extras, ...other.extras},
  );
}