style method
Implementation
TextStyle style({
required double fontSize,
required FontWeight weight,
required Color color,
TextStyle? override,
double? letterSpacing,
double? height,
}) {
final base = TextStyle(
color: color,
fontSize: fontSize,
fontWeight: weight,
letterSpacing: letterSpacing,
height: height,
);
return override == null ? base : base.merge(override);
}