merge method

Implementation

@override
FormAnswerStyle merge(FormAnswerStyle? theme) {
  if (theme == null) {
    return this;
  }

  return copyWith(
    color: theme.color,
    constraints: theme.constraints,
    elevation: theme.elevation,
    margin: theme.margin,
    shape: theme.shape,
    style: theme.style,
    textButton: theme.textButton,
    textButtonStyle: theme.textButtonStyle,
    padding: theme.padding,
  );
}